[Jim11]

He used to hit you a lot and break your things? hangs up on your continuously? Don't bother worrying about what you're doing; I'm sure you're not the issue. If he wants to be a reasonable person and spend some time with you then he will come to you

But if he's going to act ridiculous then you're better off without that.

If you'd like to spend some time with him just make it clear you're open to do so if he's going to act reasonably

What you can do to change things:
Just tell him exactly how you feel, and if he still acts out of line then there's nothing YOU can do about it.
Ask him specific questions like "why are you treating me this way when I'm just trying to spend some time with you and and/or help you out?". Hard to give specific advice without knowing all the detail

good luck