The reality star began dating Gaz Beadle's ex Lillie while filming the fifth series of Ex On The Beach in Thailand earlier this year. (It premieres next week on MTV, FYI.)
But since CBB, it seems Lillie's been forgotten…
In Monday night's show, Bear admits: "I need to be single! I thought I would be with her forever, but after thinking in here, she's not the one. I haven't got time for a girlfriend."
He's been getting close to former X Factor contestant Chloe Khan in the house. It started as a kiss during truth or dare, then kisses with no dares… And in tonight's show, they get closer still in the toilet.
Chloe says: "Tonight, everyone is getting on! Bear has got a cute side; we're just having fun while we're here. I don't think he's Prince Charming!"
None of that has been pleasant watching for Lillie…
It had seemed like Bear and Lillie were pretty smitten ahead of CBB. They posted loads of cute updates to social media, met each other's families and Lillie even wore a B necklace.
But after being in the house a few days, Bear confessed he didn't think Lillie was the one anymore and went on to kiss Chloe. Lillie at the time posted a broken heart emoji to Twitter. She's now said she would NOT go into the house to confront Bear, saying: "I wouldn't want to see him."
She's also said: "#BraveFace.. Thank you for everyone's support and lovely comments it's appreciated."
CBB airs 9pm on Channel 5.