Been there done that. Back in the 80’s our marriage counselor told me that he had never seen anyone as self centered and selfish as my wife at the time. He as much as told me to move on. It was difficult because being divorced was never my plan. Move on I did. Whereupon I met a beautiful Christian woman. We had two kids of our own on top of my prior two kids which we also raised. We are now retired and are as happy as we were on day one.
Much the same here. Except I didn’t leave my ex. I waited till she left me. Years later married again to a gorgeous woman who loves the Lord and volunteering in church as much as I do. I got custody of my two kids, and we finished raising them along with the two kids my already had. My wife retired and I’m quasi-retired, both in our 50’s. I’ll probably retire fully at 57 or 58.