Fans will know that before Bear, Lillie had dated Geordie Shore star Gaz Beadle for over a year, only for him to then split with her after realising he still had feelings for his former co-star Charlotte Crosby.
One Twitter user criticised Lillie over her exes, but defending her decision to date both Gaz and Bear, she re-tweeted one follower who had said: "You can't [choose] who you fall in love with..."
They added: "Maybe she just sees the best in people."
Bear has divided CBB fans after pulling pranks to wind up his housemates (including that coffee cocktail that annoyed Frankie Grande and making Katie Waissel cry after popping her balloon during the house's latest task), and striking up a romance with Chloe Khan.
The Ex On The Beach star had been dating Lillie prior to entering the house, and she revealed Bear had told her he 'wanted to make it work' between them.
However, CBB viewers have seen Bear declare Lillie is 'not the one' anymore and claim he is single again. Bear said: "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."
Lillie responded by telling fans there is now "no going back" for her and Bear. She tweeted: "No going back for me, guys. I'm better than that - and yes, I know my worth. Thank you so much for your kind words, you're all lovely."
She has been inundated with support, as Bear has publicly moved on with former X Factor star Chloe.
Following their first kiss in the house, Lillie tweeted a broken heart emoji, before admitting she was putting on a 'brave face' following Bear's CBB antics.
Fans, meanwhile, reassured Lillie that she is now 'better off without' him. Cally Jane Beech tweeted Lillie to say: "Well rid @LillieGregg." While Sam Reece said: "Hope your ok @LillieGregg stay strong!"
Well rid @LillieGregg— Cally Jane Beech (@MissCallyJane) August 8, 2016
Hope your ok @LillieGregg stay strong!— Sam Reece (@SamReece) August 8, 2016
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