His was an arranged marriage to an almost carbon copy of his mother. He had no chance to date to determine what type of person he might want. And his wife is endlessly bloated with child or recovering from being bloated with child.
And he came from a background that made sex and purity and controlling the body -especially men controlling women's bodies- and patriarchy, an obsession.
Frankly, his desire to have other sexual encounters is not surprising to me given his background and life. I'm actually surprised that he wasn't seeking super deviant stuff from his Ashley Madison "encounters".
I think his culture is a perfect environment for extreme sexual problems, IMO. It's all understandable to me.
But the incredible efforts to legislate other's reproduction, and to deny others their civil rights, while preaching purity and the family and how gay and trans persons threaten the sanctity of family, while hypocritically engaging in activities that actually threaten families and children...that's unforgivable to me.