Why doesn't your abusive partner believe you when you told him you didn't answer the phone last night as you were out with friends?
Maybe he DOES believe you, to him that part doesn't matter. It's just about controlling YOU. Redbeard is right on! That's why it's called "abuse". When someone is so controlling you can bet they have something on the side themselves so when one person cheats they are very suspicious of their partner doing the same thing. Get rid of this waste of skin! Never complain, never explain. Just tell him the truth and keep repeating it the same way. Otherwise, you become part of the craziness and you'll begin to feel like maybe it is the way he says! He is not making a reasonable, loving request by asserting his reality on you.