How Many Chances!

How many times do I have to be fucked over before I walk away and never look back? How many times does it take until I finally call it quits? I'm not sure but the only man I love will not stop until he finds out. It's like he loves watching me fall apart in front of him. He gets some sick satisfaction in braking me! 

How can I no longer allow him to affect me like this? How do I take back control of my life? I have no answers. He is a lying cheating bastard who will always mentally abuse me and the only way out of by leaving!