Both. He doesn't find her attractive, but he needs to be extra to get the point across without Mrs. True getting involved and potentially using Everett as a blunt object against the offending woman.
Man's kept in place by a mix of love and acknowledging he's found the only person who can take him down.
If it was just about being loyal to his wife he wouldn't be slinging insults at a woman who did nothing to wrong him outside of inviting him to a slightly naughty party game.
Bahahaha! That's for sure. The point is op was saying it was possibly sexist, and many people would cry that it is, but the truth of the matter is (generally speaking) nobody wants an old body. It pisses me off when mouth-breathers make a big deal when a guy does it, but women do it, too. It's not a matter of sexism, it's a matter of personal preference. Some people are into GMILFs, but most people aren't.