We've already told you our piece and nothing we say is going to change whatever is in your head.
Let me give you a reality check-
We have two sick kids in our house with ear infections and RSV right now, so we haven't slept more than a few hours in 4 days. Hacking, coughing, crying, not sleeping, and needing to be held. I basically hate everything right now and we have been going at it because we are so tired and worn out. Is it tough? You have no idea. But, when I got married, I signed up for this. I hate this moment, but I love my life and my family.
Things like this, financial things, life changes, kids, etc. is all part of the package. You work it out together and give it all you've got. If it doesn't work no matter what, then at least you know you did what you could. Your view that you want to end your marriage just because you want to bang other broads is about as weak as it gets. Of course it's your choice, but I wouldn't expect too many people to see your side and care.