I think he's one of those people who thinks in his own mind that he was going to go into the house and steal the show (i didn't particularly dislike him but i wasn't keen on his bullsh*t "all the women will love me" attitude either) and when he got evicted the second or third week it severely dented his excessive confidence.
I think most of the people that go into the house probably have an idea in their heads of how things will be in there but year after year you can see their faces when people as eccentric or crazy as themselves (and often much more so) follow them into the house.
Everyone thinks they're going to be 'that' person.