Husband thinks cheating is okay

Marissa

So my husband and I just got into a fight. We were talking about cheating, I believe that if you aren't happy, you leave. No exceptions. He other the other hand went on and on about how people do it for a reason, you can't always leave, you are driven to do it, etc.

I was trying to explain that if you are unhappy, you just leave because you don't cheat on someone then come home and kiss them and pretend everything is okay. His only comeback was "well what if they have kids, then they can't leave" like what? You can leave. I get where he's coming from but it's scaring me. I don't want to be married to a man that thinks it's okay to cheat because your unhappy but come home and have your partner as well.

He thinks he is right. So I'm curious as to what everyone else thinks. I thought this was common sense, but maybe I'm wrong.