The pair had not spoken to each other since Wednesday's eviction after Lee accused Casey of being a "game player".
But this afternoon, the pair made peace with each other, with Lee claiming that he wanted to clear the air before tonight's eviction.
Lee, who appeared to be cleaning near the kitchen, complimented Casey by saying she was wearing a "nice top". The Blue singer then went over to the glamour model and gave her a hug and kiss on the cheek.
"We have the worst love hate relationship I've ever known," said Lee. "I'm going today and I didn't want to leave on a bad note with you. I want to see you and hang out when we get out, and be friends and have a laugh."
The pair's truce comes just hours after Casey burst into tears over their recent drama and revealed that she would not speak to Lee "ever again".
Casey broke down over Lee's claims and told fellow housemates Ollie Locke and Luisa Zissman: "I don't want anything to do with him. It won't get resolved.
"We will leave and we will never speak again. That is it," she added.
Well, it's good to know that Casey and Lee have now made up! But if Lee remains in the house tonight, we wonder how long it will last?!
Tonight (17 January), all housemates - except for Casey and Linda Nolan - will be facing eviction.
Catch up with all the house highlights and find out who will get evicted in tonight's episode of Celebrity Big Brother at 9pm on Channel 5.