We know: the order of their relationship on TV is more than a bit confusing!
Fans of Celebrity Big Brother just saw controversial Bear, 26, publicly dumping Lillie, 25, during his time in the house this summer – and her dramatic appearance during the shopping task to confront him about his behaviour.
But fans of Ex On The Beach are about to see the extreme opposite end of the scale: the moment Bear and Lillie first in Thailand while filming the show earlier this year.
A preview video of the fourth episode of the MTV series, airing next Tuesday, shows Lillie's arrival. Bear, who is already at the villa, is sent to the beach with Gaz Beadle and Jordan Davies to await the next ex, who turns out to be Gaz's ex Lillie.
Things are clearly mega awkward between Gaz and Lillie, as it's the first time they've seen each other since their split.
For Bear, meanwhile, he's making a move on Lillie almost immediately!
After hearing Gaz praise Lillie, Bear remarks: "If you like her so much, why did you let her go?"
He adds: "She's gorgeous."
Lillie flashes him a big smile in return, before divulging her ideal man is "tanned, blue-eyed and has nice teeth". Bear, of course, is nodding is head modestly as the description fits him perfectly. Even Jordan jokes: "That's Bear, tick, tick, tick!"
"Ticks all the boxes," agrees Bear. "I'm excited."
Watch the meeting below!
So that's how their romance started! We'll see on EOTB how things play out between them in episodes to come.
We do know, however, that their relationship is now over after Bear controversially entered CBB dating Lillie, only to declare on TV he wanted to be single and she wasn't the one for him. He then hooked up with housemate Chloe Khan, leaving Lillie heartbroken.
She entered the house during a task to tell Bear how she'd been embarrassed and humiliated, but Bear wouldn't speak to her, instead looking at the floor and shrugging his shoulders. He told Big Brother it was a conversation to have with Lillie off-camera.
Things got even frostier after Bear won CBB and, returning to social media, publicly accused Lillie of being unfaithful to him with Ex On The Beach co-star Ross Worswick. Lillie hit back vehemently denying the claim, before Bear acknowledged in a second tweet that he had been wrong and sent his apologises to both Lillie and Ross.
EOTB continues Tuesday at 10pm on MTV.