I'm married but I can stop thinking about another man
Why do you like that other man?
Because he's a good actor who makes me laugh every time I see him on T.V.
You can't help who you like but you can control how you act. It would ruin your marriage if you do something immoral like cheating.
Meh, I don't give a damn if it ruins my marriage. She knows that I cheat and it's not like she doesn't cheat on me.
It does not look like you have a healthy marriage when you both cheat on each other but you cannot continue with those immoral things. It is not right for the other person to be involved in your drama.