I think Toby's issue is that he is pissed off he has being at the bottom twice and blames Chloe for it without realising that he is unlikeable himself
Yes, I was wondering about that.
Was his obvious pissed-off-ness also a result of seeing the girl he's just dumped move on, and be chosen by someone else. Someone who might be more popular than him?
Abigail needed to target Hugo or break up a couple to stay in. Did that cross Toby's mind at the time of Hugo's choice too?
I think Hugo might have fancied Chloe for a while - Georgia certainly seems to have said so in a post-exit interview (and she's have an obvious interest in observing him closely). Chloe wasn't particularly nice to him when coupled up before though, was she?