I think you have a really good outlook. Many of us posters hang on and ruminate. And I don't see that in you're posts.
Doing whatever you need to do to get away from all this is healthy for you.
It is really hard to accept that our spouses and relationships changed the way that they did. It makes so sense, but look at these forums. It happens all the time. We can explain it all away, as mlc,family of origin issues, depression, addiction but it does not matter. Because our spouses have made their choices and we have nothing left but to accept it and move forward.
I'm sorry. It's hard. We have to mourn and grieve and get angry and deny and then ultimately move on.
Just focus on the goals pertaining solely to you. Not your relationship.