Motivated by the part that Halfwit played in the punishment Big Brother gave the housemates, where their food was removed,

Bea launches an attack on Halfwit saying that what he does is "unnecessary meddling negativity"

And she followed it up by telling him that he's not as clever as he thinks he is.

This seemed to come as a hammer blow to him, as he'd previously hoped that something of a more romantic nature could develop between them, and that they were well matched.