Why do you let the person who hurt you occupy your thoughts?

I had situation like this I let someone to hurt me and destroy me, just because I was in love. And it's so difficult to say goodbye...

When someone impacts you life so much. It leaves a piece of them with you. Subconsciously still controlling you even though they aren’t in you life anymore. It hurts and it takes a lot of healing but now I can see that I have grown to be stronger than them. While it’s occurring it might not feel like much but every little action is setting you up to be the person you are meant to become. They do not have control over my actions. I affirm daily to remind myself that I don’t have to listen to my intrusive thoughts, I can make my own.