Dating

Chris Pratt sending birthday love to his girlfriend, Katherine Schwarzenegger, was expected ... but he shocked us all by spilling the beans on his super cute nickname for her!!!

Chris posted an adorable bday message to Katherine on his Instagram, complete with a collage that screams #couplegoals ... but the thing that really caught our eye was the pet name, Chief.

The social media equivalent of a birthday card reads, "Happy Birthday Chief! Your smile lights up the room. I've cherished our time together. Thrilled God put you in my life. Thankful for the laughs, kisses, talks, hikes, love and care.

It's interesting ... as best we can tell, this is the first time Chris has ever shared a pic of Katherine on his social media pages. They've been having tons of fun together since the summer, from family football games on Thanksgiving to PDA sessions at Disneyland ... and now it's social media-official.

50 Cent has no problem with the pace Nicki Minaj and her new boyfriend seem to be moving at in their relationship ... because they're picking up right where they left off.

We got Fif in Bev Hills Wednesday night where, at first, we asked if he or Starz were planning anything for the family of the "Power" crew member who was tragically killed in a freak accident this week on set. Understandably, he's not ready to talk about it.

Our camera guy then pivots to the 'Queen' rapper, and asks if he thinks it's too soon for her to be talking babies and marriage with her new man/old flame, Kenneth Petty -- a convicted sex offender.

Nicki Minaj's relationship with her new boyfriend is way more serious than we thought -- 'cause we now know she's considering the married and mom life with him.

Sources close to the "Queen" MC tell us Nicki and Kenneth Petty have already had the marriage and baby talk -- this after only a couple months of dating. We're told Nicki is serious about the prospect of marrying Kenneth and having his kids ... because she believes he's that good a man.

As for that whole convicted sex offender thing -- among other crimes -- we're told Nicki couldn't care less.

She certainly isn't shy about showing off her new boo either -- Nicki posted a video of them working out together in the gym.

As we reported ... Nicki feels Kenneth has changed for the better since he was young -- when he was convicted of first-degree attempted rape as a 16-year-old. He's an old flame from back then, and we're told she's as happy as ever now that they've reconnected all these years later.

Nicki seems to believe Kenneth was falsely convicted ... he was dating the victim at the time and claims the girl's mother had it in for him and made false allegations.

Kiara Mia says there's no way in hell her date with Jimmy Garoppolo cursed the Niners QB ... but the porn star doesn't exactly mind the take, saying, "I'm flattered!"

Of course, Jimmy's season came to a catastrophic end just a few weeks after his famous night out with Kiara ... and some fans pegged her as the bad juju that caused his ACL tear.

But, Kiara says, for as much as she's honored that people think she has that kinda power -- she tells TMZ Sports it's just not possible.

"I'm impressed that people look at me as a God," Kiara says.

"Like, only God has the power to, like, control someone's journey in life. So, I'm flattered people think I have that much power in my life to control somebody's life!"

Kiara tells us she really hasn't been keeping up with Jimmy or his team -- we had to break the news to her that the Niners really suck -- but she says she's already moving on to a new squad.

"I'm Mexican and I'm from L.A., so I have to say the Raiders!"

Sooo ... Derek Carr, WYD???

Put him in, coach -- Pete Davidson's back playing the field after the Ariana Grande breakup, and we gotta say ... dude knows how to class it up for date night.

The 'SNL' vet was spotted having dinner 1-on-1 Monday night at Carbone in NYC, with a lovely lady sitting across from him. You can see in the pic, it was full wine and dine mode.

This is one of the first times we've seen Pete out on the town with a new girl since he and Ariana split in October and called off their engagement. We're told he has been casually dating. It's also certainly a nice change of pace considering how rocky things have been for him since the breakup, privately and publicly.

Just last week, he announced Internet trolls were encouraging him to kill himself ... but vowed he'd never do any such thing. Way to bounce back, Pete.

As they say ... thank u, next.

Ramona Singer and Harry Dubin are just friends -- friends who had one drunken makeout sesh -- but we're told they're definitely not banging ... not at this point.

Sources close to the kissing pals tell TMZ ... the 'RHONY' star and Dubin are not dating or even going the "friends with benefits" route. Despite the fact they were inhaling each other's faces Friday night in NYC, we're told there was nothing Biblical about how the night ended.

Translation: no nookie.

Our sources say Ramona and Harry were just talking and flirting and maybe definitely had too much to drink ... which led to the passionate kiss. We're told both are happily still single though.

As you 'Housewives' fans know ... Harry's got a long history with the 'Housewives' -- he's divorced from Aviva Drescher and is a former flame of Sonja Morgan and Luann de Lesseps.

If Nikki Bella's date with Peter Kraus had been filmed for "The Bachelorette," it would have ended with him strolling into an SUV without a rose. She just wasn't feeling it ... TMZ has learned.

Our production sources tell us ... while her date looked every bit like an episode of 'Bachelorette' -- which included a ride on a gondola and sipping wine -- fact is, there just weren't any sparks for her to wanna lock down a second date.

The big tell ... we're told Nikki couldn't muster the strength to pucker up and kiss Peter when he made his move. Yup, she left him hanging. We're told she freaked out and screamed "NO!!!" before pulling away.

Bottom line ... Nikki's just not ready to start dating again following her on-again, off-again relationship with John Cena.

As for why she went on the date at all? We're told Nikki's mom is a HUGE 'Bachelor' fan and suggested she give Peter a shot. The date will play out on the new season of "Total Bellas" next year.

For now, we're told Nikki will be laying low on the dating scene, and focusing on her career. Back to the drawing board, Peter.

Safaree's finally getting cozy with someone post-Nicki Minaj ... the rapper was spotted out and holding hands with Erica Mena.

Sources close to the 'Love & Hip Hop' stars tell TMZ ... Safaree and Erica recently started dating and ... were seen walking hand-in-hand IN MATCHING FUR COATS at the Jazz-Nets game Wednesday night at the Barclays Center in Brooklyn.

We're told there were immediate fireworks ... and while they're not officially boyfriend/girlfriend yet, they're well on their way to that status. Safaree had been hinting for a while now about finding love ... posting clues on his Instagram story he's riding with a new chick.

Erica also took to Twitter before the Nets game ... professing she's finally finding true love.

Our sources say Safaree and Erica's new connection will be featured on 'L&HH' at some point.

Clearly, these 2 kids seem to be riding high on Cloud 9 ... a far cry from their previous relationships. As you know ... Safaree's on-again, off-again relationship with Nicki Minaj ended terribly, to say the least. He most recently accused her of trying to kill him.

Could Tim Tebow's days as an unmarried man be numbered?!?!

Certainly seems that way ... 'cause the ex-NFL superstar brought his Miss Universe girlfriend to the Tebow Family Thanksgiving -- a sure sign that things are getting THAT serious.

Tim and Demi-Leigh Nel-Peters -- Miss Universe 2017 -- have been dating for a while now ... and they've been getting super cozy with each other the last few months.

Remember ... the South African model wished him a very public "happy birthday" back in August AND the two had a date day in New York with DLNP's fam in September.

In fact ... Demi even hinted she was "falling in love" with the minor league baseball star after the two hit up a Florida game last month.

But, the couple took things to another level last week ... when Tim brought her to the fam's turkey dinner.

"My first American style Thanksgiving with the sweetest family," DNLP said of the holiday ... "Grateful for an incredible year and everyone I got to share it with."

Tim never got a ring in his 3 years in the NFL ... but we wouldn't be shocked if he bought one pretty soon!!!

We already knew Meghan Markle had prior relationships before meeting Prince Harry -- but we didn't know just how lovey-dovey she was with her old boyfriends ... until now.

Here's a photo of Meghan cozying up with her old celeb chef flame, Cory Vitiello, while they dined in Toronto. In the pic, obtained by TMZ, you see Meg sitting on Cory's lap with his arms wrapped around her waist ... and him laying a big smooch on her cheek.

We're told this pic was taken at Atlas Restaurant in May 2016 -- which wasn't too long before she started seeing Harry across the pond. Remember ... Meghan and Harry reportedly began dating in the summer of '16, so something must've happened between this picturesque moment and whatever summer month Meghan got fixed up with Harry.

Even more interesting ... both Meghan and Cory went on to get hitched. Oh, and Cory's got a kid now too ... Meghan, of course, is expecting her first child with Harry.

Sounds like a great case of "Good Luck Chuck" that goes both ways.

Halsey looks like she's on the rebound after breaking up with G-Eazy, and she's bouncing back with a younger guy.

Halsey was spotted leaving a studio Tuesday night in Hollywood, snuggling up to British musician Yungblud. The 24-year-old's gaze is a clear sign she's into the 20-year-old Brit, and the bouquet of flowers probably helped. Dude's a romantic.

Halsey's night with the newbie comes days after her ex, G-Eazy, was showin' off a bit of PDA with a mystery chick -- they definitely got something brewing.

After breaking up for the second time this year, Halsey and G-Eazy are steadily moving on. She's been jiving and thriving since the split, dancing her ass off on Halloween and performing with Lil Wayne on 'SNL.'

David Guetta and his GF are not walking down the aisle anytime soon -- or ever, really ... but the DJ did give her that giant diamond ring she's rocking. Let us explain.

Sources close to the couple tell TMZ ... the EDM superstar straight-up doesn't believe in marriage -- anymore, anyway -- and that's why he and actress Jessica Ledon are NOT engaged. As we reported ... the couple was hanging on Miami Beach this week and her big ol' ring drew a lot of attention.

And, the story behind the rock? We're told it's a promise ring David gave Jessica last year -- a promise to "love and commitment" ... but NOT a promise to walk down the aisle.

As you know, David got married once before ... in 1992 to Cathy Guetta. They divorced in 2014.

David and Jessica have been dating since 2015 and, obviously, still going strong.

Nuptials. They ain't for everyone.

Paris Jackson can wear two hats at the same time for her boyfriend, Gabriel Glenn -- that of supportive girlfriend ... and, of course, the steadfast groupie roadie.

Michael Jackson's only daughter was spotted Tuesday night at The Viper Room in Hollywood for a gig Gabriel's band, Trash Dogs, was playing. She definitely wasn't just swooning in the audience though -- Paris was on her knees recording her beau onstage.

Her hard work didn't stop there. Paris was later seen handling some equipment for the band. BTW ... Gabe's the singer and plays guitar.

Fun fact ... Paris and Gabe play in another musical group together called The Soundflowers. They were seen jamming out together in L.A. earlier this summer for a cancer benefit performance, with Paris on the mic and Gabe strumming beside her.

Looks like Post Malone's sticking with his good luck charm -- the chick he was cupcaking on a yacht right after his near-death experience on that private jet ... and ya can't blame him one bit.

We got this shot of Post walking through George Bush Intercontinental Airport in Houston. He was jetting off to Dubai Sunday, and his germ-deflecting surgical mask wasn't all that caught our eye. His cute travel buddy looked real familiar.

When last we saw her, Post was spraying her down and canoodling with her back in August on a yacht off Saint-Tropez. Good times.

Of course, that was one week after his terrifying emergency landing, and shortly before he survived a major car accident. Safe to say, she was the best thing to happen to him this summer.

As for the nature of their relationship -- a source close to Post says airport/yacht babe is just a friend. That may be, but that's a pretty tight grip between friends. Just sayin'.

Joshua Jackson got a little handsy over the weekend ... with a gorgeous gal pal.

The former '90s heartthrob was spotted holding hands Sunday in L.A. with actress Jodie Turner-Smith while out for lunch. They were all smiles and making it crystal clear ... they're very much into each other.

As you know ... Joshua split from Diane Kruger about 2 years ago after their 10-year relationship came to an end. He was later seen stepping out with model Shafia West and, earlier this year, Josh was linked to TV host Alyssa Julya Smith. The bachelor life ain't easy.

As for Jodie ... she's an up-and-comer. Ya might have seen her in "The Last Ship" on TNT and she's set to appear on the Syfy channel's "Nightflyers" in December.

It's no longer just me, myself and I with G-Eazy -- he's got a cute little blonde babe hangin' off his arm now ... and all signs point to a successful rebound post-Halsey.

The Bay Area rapper was showin' off a bit of PDA Tuesday night with this mystery girl in Los Feliz, where they certainly looked like they were on a date. The two of 'em were seen holding hands and coming in for a big bear hug. Check out her smile ... is that amore?

It's good to see GE getting out there again -- for real this time -- especially after his seemingly unsuccessful night out at Drake's birthday party a few weeks ago. Remember, he left the shindig by himself ... with just a bodyguard in tow.

As we reported ... G-Eazy and Halsey broke up for the second time this year, and even unfollowed each other on social media. She's been rockin' and rollin' since then, showing out for Halloween and, most recently, performing with Weezy on 'SNL.'