Historically speaking, this was the spark to most duels. Over insulting another`s honor via his wife.
Yes, I am aware that duels were how men of breeding would settle a slight on their honour..I am struggling to think of historical instances of it being over an insult to a wife's looks - although I am sure it happened.
I would wager it was most often for someone making sexual advances towards another's wife.
In all seriousness though, I think you're better than that. It isn't necessary.