Moving on after first marriage

This is a hard topic. I never thought I would be leaving me husband but he cheated me and I forgave him but he did it again. So I walked away... right now I filed for separation. Not gonna lie. It’s hard. He still calls me but I just don’t think I can go forward with him. I just want him to favor her our son. I’ve been hurt too badly. I feel so embarrassed because we been together for 6 yrs and married for 2 years. It’s like when we became married, something changed with him. So now that I am going forward.. I decided to go back to school and get my masters for me and for my boys. I’m gonna stay with my parents til I can get back on my feet. I walked away from it all. I don’t even want his money. It’s not worth it. I told him that I don’t care about money but I do want him to continue to be his father. My question is... how is life after a divorce? How do you deal??