Peter her fiance?

Anyone else thought the twist was going to be that Peter was gay? I mean he clearly sounded like a homosexual and with his mannerisms and body language, he gave off a clear gay vibe. The scene with him wearing the diaper at the gas station seemed like something bigger than it was. Also the scene with him and his friends, some of them definitely seemed gay.

I was surprised by the ending that none of that was mentioned or even thought of.