Umm a man having sex with an unmarried woman is not evil. It might be a shitty thing to do if you are cheating on your wife, but not evil.
I think it's pointless to deny that treachery and abuse of trust is evil but if you wanna die on that hill, it's up to you.
I said my piece and will depart now.
What?! Cheating on your wife is evil, you take vows and everything. This might be just my opinion though.
It's definitely not just your opinion, it's more like a fact.