I guess I can't even imagine NOT being faithful. My boyfriend is amazing and I would hate to lose him. He's an incredible boyfriend, amazing in bed, etc. I'm not really looking for anything outside of that. Sure, I may have little crushes on other guys, but it's just them being attractive, I'd certainly never act on it, that is as far as it goes. Even if one of my crushes approached me and wanted to date me or sleep with me, I would say no for sure!!
If you didn't want to be with one person for life, why are you married?
I know plenty of married people who have been with their partner and ONLY their partner for the rest of their life. I do know some who have cheated as well. I also know some who have healthy relationships but who also have threesomes. That is always a possibility....
Before you got married, maybe you should have thought of these things. Why didn't you?
What would your wife think of an open marriage?