Following Chloe Khan's eviction from the house, Heavy took aim at fake relationships between the housemates.
He began: "Everyone thinks showmance does you favours, I personally don't think it does. You can't fall in love with someone in two weeks, I don't think it's possible."
Lewis insisted his relationship with Marnie was genuine with a bizarre metaphor comparing love to a seed.
But Heavy wasn't having any of it: "Out of 15 people, two people fall in love, that's what I'm saying!
"I'm just saying, you've got 15 people coming into this show, two couples have fallen in love, what are the chances of that? Come on, leave it out mate."
While Lewis maintained there wasn't any fakery going on, with support from Bear, Heavy continued: "I'm just saying, everyone thinks showmance gets you further through the game and I think it's a load of codswallop, that's my opinion.
"If I'm thinking it, other people are thinking it. Come on, leave it out."
"I don't care, I don't care," Lewis continued.
Later on, Lewis went to chat to Big Brother about Marnie in the diary room, saying: “I’m so in love with her! I believe in us, and her as a person. I think she’s amazing, I have such a connection with her…”
Celebrity Big Brother airs tonight at 10:30PM on Channel 5.