Well, as someone who has had both a "passion" relationship and a "partnership" relationship, I feel I am qualified to say that the passion doesn't last (with me, it lasted a year). If there was any spark in the "partnership" then it would have been the right choice.

However, I think why most people are mad is because Adam was portrayed as a "nice guy" who got jilted by Melena, who chose bod over substance - and he turned around and did the same. If he had been portrayed as anything else than a guy who was trying to find the "one", people probably wouldn't have been so upset. If he was out for a good time, he should have said so. He, and NBC, portrayed him as something different so people feel duped. In retrospect, the way he felt up and smooched all those girls makes me believe he probably is a snake after all...

I actually think they should have put a twist before his decision where he has a conversation with the two girls that he's lost all his money and seen how they would react...