Guilt from leaving an abusive relationship.

Its been a few days since I left a dam near decade long abusive relationship. I know I did the right thing. After waiting my entire 20s being miserable. I know there's still time for me get to know myself and try to find peace and happiness. But at the same time I cant help but to feel sad and guilty for leaving him while he was begging me to stay. I hate this feeling it's eating me alive. How can I cope with this immense sadness. I don't have any friends I'm not close to any family members. I can talk to about this. I feel so alone.