An exclusive clip of Lillie arriving in the house was played on Celebrity Big Brother's Bit On The Side and it's fair to say we've never seen Bear so quiet.
CBBBOTS host Rylan Clark-Neal explained: "Bear's ex-girlfriend Lillie Lexie Gregg went into the Big Brother house as part of this week's shopping task to talk to him face to face. It did get very emotional when she was in the house."
The housemates' latest shopping task requires them to complete very simple tasks while not getting distracted by things Big Brother throws at them – including the arrival of Lillie.
Bear had been balancing doughnuts on his head when Lillie tentatively stepped into the living area, eliciting gasps from Marnie Simpson and Lewis Bloor who obviously knew who she was.
"Oh my God!" shouted Marnie, while a stunned Lewis said: "It's Lillie! What's happening Lillie, you alright?"
Well, clearly she's not after being dumped on TV. Introducing herself by saying, "Hi, I was Stephen's girlfriend" she approached Bear to say: "Obviously this was the hardest thing I've ever had to do, to walk through that door, but I just needed to see you and look you in the eyes."
All the housemates were watching with shocked expressions. "Oh God, I can't watch!" said Katie Waissel.
We'll have to wait until tonight' show to see what exactly what Lillie said to Bear and whether he answers, as in the preview clip he just stares at the ground while Lillie speaks to him.
Bear then goes to the Diary Room where he seems visibly shaken and upset. When asked by Big Brother how he is, Bear replies: "Well…." There's then a huge pause before Big Brother has to ask if he's okay. "I'm fine," he says quietly, looking on the verge of tears.
Viewers know Bear and Lillie had been dating when he started his Big Brother journey, after meeting while filming Ex On The Beach 5 in Thailand earlier this year. But once in the house, Bear told the housemates he didn't think Lillie was the one and he wanted to be single. He then hooked up with Chloe Khan, sharing steamy showers with her, a racy massage and watching her pole dance topless.
Lillie responded by tweeting they were over and she was worth more. She later told Daily Star: "He craves attention. TV shows are pressure. There's a pressure on people not to be forgotten about. I'm embarrassed and can't go back on what's happened now. I'm worth more than that."
It all airs on tonight's show at 9pm on Channel 5.