Cheat
Cheating is not a mistake, first accept it. No one enters anyone's bosom accidentally or unintentionally. You meet someone, you are influenced, you set your mind to make love, you get together, you prepare the environment, you stay alone, you undress, you make love and so on. You can't call something a mistake, even when you're reading it. Cheating is a deliberate crime, gender doesn't matter. It is at the discretion of the deceived person to forgive or not, I cannot classify them as right or wrong, but do not console yourself with "a mistake you made" when forgiving. Say "okay, he fucked this up, it doesn't bother me" be realistic so that this situation doesn't eat you up in the future.