You don't owe him any notice on the phone or the truck. If you want to avoid the $200 cancellation fee, you can ask him if he'll give the phone to you, and then you can use it yourself. If not, cut it off and swallow the $$. It's only money.
Regarding the truck, get out from under this obligation. Let them repo it
I know there are two sides to every story, but, based on the one side I've heard, you need to get away from him for your own health. I agree with LL that you should do some work before getting involved with anyone again. (I know I would need to). But right now, sever the ties.
