Abusive Relationship to a non-abusive relationship

I need some help. A few years ago, I was in a severely abusive relationship. Emotionally, physically, sexually, psychologically. I really need some help on how to be strong in my new relationship. He is not abusive, he is supportive of me. He is kind, loving, and sweet. Occasionally, I find myself wondering why he didn't snap at me for something I said, or hit me for doing something I used to get hit for. I just need some pointers on what I can do to get these feelings to go away.