isolates you from friends and family, even if what he says about them is true.
takes money from you, or you somehow end up paying every time.
accuses you of looking at other men
doesnt like you having pets, or caring about animals (or anything except HIM)
asks you to do illegal things, eg say that you were driving when he has an accident, or claim benefits illegally.
introduces violence into the relationship with an expectation that you will find it normal. Tells you that he has a previous conviction for violence.
Excuses violence against his ex on the excuse that she was keeping his children from him (do I need to add that the violence probably came first???)
makes decisions for you
seems to have had unaccountably bad luck with all his previous relationships, as they wre all bitches who cheated on him.