[Jemal]

Yea ive cheate and been cheated on.
Im kinda glad in a way it all happened, makes me learn from the past

The person with whom your partner cheats is completely blameless imo. Unless they are a friend of yours - then it doubles.

If you are that person, then your responsibility is to your self, not to anyone else's relationship. Especially when one half of that same relationship can't keep it's knickers/y-fronts on.