Kyrie Irving & Kehlani Hug It Out in Chicago ... But We're 'Just Friends'

Interesting situation in Chicago ... with Kyrie Irving hugging it out with his ex-girlfriend, Kehlani ... the first time they've been seen together in months.

It all went down Friday night -- the two met up where Kehlani was staying and spent some quality time together. They were smiling, hugging and acting friendly.

Kyrie and Kehlani broke up back in March -- and she rebounded with her singer ex-boyfriend, PartyNextDoor.

Pissed off fans accused Kehlani of cheating on Kyrie (which she denied) -- but she was so distraught, she tried to kill herself. At the time, Kyrie defended Kehlani.

But the situation in Chicago is not a complete romantic reconciliation -- a rep for Kehlani tells TMZ Sports, "They are only friends, not back together."

"Things ended bad and they hadn't had an opportunity to see each other ... and they wanted to meet up face to face and make peace."