H3rmit, I have not been through what you are going through but know what helped my sister was having solid supportive friends she could confide in, and also relax with.

She was devastated when her husband walked out on her (they had a young child too), and the adjustment was very hard it's true, even though he had been an abusive partner she still wanted her marriage to work too.

These days she feels it was the right thing, she has another partner (who is not abusive), I dread to think what she would be like now if that marriage had lasted. You say it was give, give, give from you and take, take, take from him - he isn't keeping is promises paying you back, don't you think you are worth far better than this?

Take care, practice TLC to yourself, and surround yourself with as many positive people as you can.