I totally didn't get the homosexual tendencies here. I felt the narcissistic overtones big time!!!
Unless, the author is a closet homosexual and never consummated his own marriage with the wife he married for a prop.
His total godlike submission to Evan could be codependency. His wife is a codependent as well. The have no life outside of him.
Narcissists can sense weak people, and are drawn to them.
In my opinion, Evan is a sociopath that deserves what he deserves. If he knew he was sterile, he wanted to hurt his wife with the fact of what he knew REALLY HAPPENED BETWEEN THE TWO HIS WIFE AND Stranger!!!
He wanted it to happen, so he could hold it over her head. 
He was weak really. Not God like. Low self esteem. A poser. Only mighty because people looked up to his mirror image....