It's hard to say what makes some people happy. Maybe she sees all this as a new beginning, a new start. Divorce will just naturally change your relationship with your X inlaws, but I wouldn't recommend trying for full custody out of spite. I hear ya man, I have though of every vindictive thing i could do to her to get back at her or to get the fog to lift. I finally let go and GAL, if she comes back she will if not who cares. My new life is being a good dad, working hard, making new friends and doing things that I have always wanted to do because of the nature of compromise in a marriage. I don't regret not doing those things (during the marriage) because I was being a good husband/mate, but now I have time to do those things. For instance we never traveled unless it was to see family. Well now I get to travel. I am planning on something big this year as well as just mini vacations close to home.
M 21 years XW 43yo, me 41 yo S13 BD March 2016 - she asked me to patient... End of June - I started the D process. D final 2/23/17 "He who forgets will be destined to remember" Eddie Vedder