Every marriage has problems, the only difference between them and you is that both parties wanted to work through the issues. Beta male, Alpha male, Type A, Type B I mean it all sounds great but it takes all kinds and at the end of the day we are who we are. Sure we can make small tweaks to ourselves, get yourselves in shape, eat healthier etc. but I don't believe we can change the core of who we are as people. Be more balanced......yes
The failure of your MR is more about her than you....more about her in not wanting to work on it and breaking up your family. I too could have done things differently but that doesn't mean that I would have been still together with my XW. Maybe if I was more of an Alpha male or hardcore Type A I would have walked away from her. See what I mean??
I am a great father, good provider, and a good husband that provided safety and stability for my family. If your W or my XW wants something different, the butterflies, the chase, the limerance, that feeling of excitement it is pretty hard to do after being with someone for a long period of time.
People get D'd all the time that make millions of dollars, and live dream lives. It is what it is and if one person wants out game over.