'Love Island USA' Star JaNa Craig on Kenny Rodriguez Split: 'Terrible, Disgusting'

3:18 PM PT -- JaNa has responded to Kenny's statement on Instagram in what has become a ward of words. She wrote, "stfu you manipulative liar. You not taking accountability and telling people the type of person you really are is insane to me!! My first statement was me being nice. Do not piss me off"

2:57 PM PT -- Kenny has now broken his silence on the split ... writing on Instagram ... "The past few days have been incredibly difficult. I've been quietly sitting with a lot of emotions and doing my best to process everything privately."

He continued saying, "Breakups are never easy, especially in the public eye. Sometimes, despite how deeply you care for someone, you come to the hard truth that the relationship was not something that could last long-term."

He ends with, "I'll always be grateful for the time we shared and the memories we created. I released this chapter with no ill will, only a hope that JaNa's path forward brings her nothing but happiness."

JaNa Craig is speaking out for the first time following her breakup with Kenny Rodriguez -- and she's not holding back.

"The Love Island USA" star addressed her Instagram followers Tuesday thanking them for love and support ... and took aim at the swirling speculation surrounding their breakup.

She wrote, "Please know that I have seen all the breakup theories and none have matched up to how terrible, disgusting and disappointing it truly is." She went on ... "Discovering that someone you loved isn't who you thought they were and that the relationship you thought you were building hasn't been genuine since day one has been truly devastating."

Though she didn't go into specifics, her message strongly implied betrayal during their time together. She closed the note with a message of strength and faith, saying, "Thank you for respecting my privacy and please know as a child of God, I will always be okay."

We broke the story ... JaNa ended the relationship on Sunday morning and we were told JaNa's been leaning on her close girlfriends to help her get through her heartbreak.

Jana and Kenny were one of the more buzzed-about couples, but online speculation began Sunday after eagle-eyed fans noticed JaNa and Kenny took one another out of their Instagram bios and stopped following each other.

All their friends from the show unfollowed Kenny on social media.