I notice when ever I'm nice my partner acts like a cruel bitch!

I'm so torn, and yes I know my frequent rants are becoming a thing. Also it's not just so easy to leave a relationship! He makes me feel a way that I never felt! Which is undesired. I can never do anything right and when I do, He behaves even worse. P.S I tried breaking up with him! It's not happening he won't leave.... hes set in his ways and expects me to understand his abnormal behavior 😣Sigh