Kind of lost

So I recently got out of an abusive relationship. It took me 3 years to leave. Even though I know how he treated me was wrong and can see all the damage and feel all the pain like it was yesterday I can't help but find myself missing him. I continue to move forward in life and have refused to have contact with him. It's been 3 months and I still cry thinking about him not being there. I want to stop missing him. I want to truely be happy again but sometimes it's just hard..... My life has been so much healthier since I've gone but I can't help but find my self reminiscing about him........