See I only partially agree missbrick. I can't forget the way Laura treated wes, she was already doing the same thing, even asking Ellie if she was interested, and that was after a week of them fighting and her pulling him up on his behaviour where she felt it wasn't ok.
So I'd agree with you if it started from wes dumping her, but it didn't, it started before even Ellie came into the villa, well before.