I agree, it's been clear for a while that Curtis didn't really fancy Amy- eg when she asked him if they'd work on the outside he clearly squirmed.
What I can't get my head around is why did he select Jourdan as his target when she was clearly getting with Danny (and had already shared a bed with Jordan)?
When he sat on the bean bag and told Jourdan he was stuck between choosing her or Amy he literally didn't even ask if she actually liked him back! (I thought Jourdan was very diplomatic at that moment, suggesting he focus on his 'issue' and let him down gently).
Was this sheer arrogance on the part of Curtis, ie just thinking there's no way Jourdan would ever turn him down? Or, as others have said, did he go for a random girl for the drama? He could have gone for that Maria who said she fancied him, for example. All very odd.
As an aside, although I was impressed by Jourdan's diplomacy at letting Curtis down gently, I went on to seethe at her smug faces during the recoupling
and especially at poor Amy. I really want her to stay away from Amy and not rub salt into the wound.