Oh my God I'm so confused need advice please !best answer 10 points!his crazy mom sneaks through his stuff?

It sounds to me like you have to talk to him honestly, apart from his mom. Also, it may not be a bad thing that this relationship ended, because a controlling, hateful mother-in-law can make for a lot of relationship misery. You need to decide, by yourself, if the relationship is worth putting up with his mother. Then, you need to let him know what you decide, and if you still want to be with him, let him decide what he wants to do and deal with his mother.