My ex is so bitter. I decided I didn’t want a relationship with him anymore after being cheated on…

My ex is so bitter. I decided I didn’t want a relationship with him anymore after being cheated on and embarrassed multiple times. Now he doesn’t want anything to do with our baby. I’m so hurt that he won’t accept our baby unless he can be with me. He even went as far as saying f*** the both of us. It’s sad though because I want her to have a relationship with her other relatives in his family. I feel like if he’s around her, he’ll hurt her to hurt me 😢.