Muslims in the Middle East routinely rape men, they have sex with boys, and they believe that molesting a male or female Infidel is perfectly acceptable. They are a mess of sexual aggression and confusion. It is not at all surprising that this guy would have sex with men while not believing himself gay, or that he was a closet gay who could not deal with the supposed conflict between Islam and homosexuality.
Maybe Omar objected to the kissing. If it’s all about power and dominance, maybe they don’t mind buggery as long as affection isn’t a part of it. (I admit a total lack of experience with this.)
Or as I asked yesterday, when it came out he was Afghani, maybe he was raped as a boy since that is ok in Afghanistan.