The Ex On The Beach star locked lips with Chloe as part of a truth or dare game on Thursday night's (4 August) episode of the Channel 5 show, despite seeing Lillie on the outside.
And now he's told housemates he's up for round two.
"I kissed Chloe last night and really enjoyed it," he said. "It was great. I want to kiss her again. I really enjoyed it. We kissed again after [the dare], then we kissed in [the other room] It was nice, really good. Thoroughly enjoyable!"
The evening didn't end so well though, as Bear and Chloe's late night kissing and entry to the bedroom led Heavy D to accuse Bear of being disrespectful to the housemates, resulting in a row which saw Bear called to the Diary Room and given a formal warning.
Speaking the next day, Bear said: "I went from being really happy to it being really f**king weird in there. One big c*ck block."
That's no doubt tough viewing for Lillie, who began dating Bear when they met while filming the fifth series of Ex On The Beach in Thailand earlier this year. It airs on MTV later this month.
Reacting to Bear's actions in Thursday's episode, Lillie - who has been abroad with family while Bear is in the house - posted a broken heart emoji to Twitter.
Lillie liked a tweet from a fan that read: "Really feel for @LillieGregg tonight #cbb," And another that said: "@LillieGregg ur a beautiful young successful women u will Find the right man when u least expect it head up Hun (sic)."
When Bear entered the house, Lillie told The Sun that they were dating but not official. "We had a chat before he went in. He wants to be with me, he wants to make it work and I was just very much like, 'Well, obviously it's a massive opportunity, go and enjoy yourself and if it's meant to be it'll be.'
"Let's just hope he can keep his hands to himself [or] I won't be there on eviction night!"
CBB continues 9pm on Channel 5.