One thing I have to ask is if you’ve tried any counseling? Some of the things you mentioned seem like they could be compromised on. I’m not telling you to stay in a relationship you aren’t happy in, but at the same time just like this can and probably will be very hard on him it may be very hard on you. If you see him move on, and let’s say you’re struggling to find someone, you might start questioning your decision. That’s all a part of life though. And while I know people say you shouldn’t date an ex, even if this ends I wouldn’t necessarily consider it entirely final. You just never know what will happen in life.

With all that being said, I’ve seen way too many people end up in miserable marriages and stay in those situations for so many years. Life is just way too short to be unhappy for the duration of it. So if you really think this is what you need to do, then you have to do it. All
I will say is to be careful rushing in with this new guy you have been talking to, I just never think that’s a good idea after any breakup but especially after a divorce.