If I may be short in my reply;
I'm sorry you're going through this. I can't imagine the pain of going through a marriage on the rocks. My heart goes out to you.
Isolating yourself at this time is probably the least loving thing you can do for yourself.
Stick around. Scream at us. Cry on our shoulders. This would be an act of self love (being heard and valued), as well as a loving act for other people who would grow from hearing and sharing your pains and sorrows.
Please reconsider. You deserve better than to isolate yourself.
It's a heroes journey, and you are the hero.
Loving Kindness Meditation will dramatically improve your spirits; give it a try for just 3 days: http://www.youtube.com/watch?v=sz7cpV7ERsM