Why the hell is he being a dog in the manger?

Dear Diana,
I was in a relationship for three years. I committed my life to him and had no doubt he loved me a lot. But he'd never go against his parents. His parents won't accept me because out horoscopes don't match. I fought with everybody and went to all possible extremes. We broke off. Six months later, we met and I wanted to be friends with him for a lifetime. I ended up hearing abusive language and negative things from him. Because of that, I hate him and want to move on but he is not letting me by reminding me of all time we spent together. But I don't see a future with him as his last acts hurt me to my very soul. I want to see myself well-settled and happily married to a guy who'll love me like his life. My ex was missing from my life when I needed him the most...... now when I'm doing so why is he creating hassles for me?