Help. Idk what to think or do. My heart is breaking.

A bit longer, I apologize..... What would you think if your SO out of nowhere stopped having sex with you and refused to touch you in anyway or even kiss you? And caught him now logging out of his Facebook whenever he is done checking it on his phone? I should also add on that he wants to go out by himself and drink now without me randomly and doesn't answer his phone when he's out and refuses to even tell me where he's been. He expects me to wait on him hand and foot. He works and I don't. I stay at home and do all the housework(which I'm absolutely ok with because it's a way reciprocating for me not working). I'm never allowed to go out unless its with him. He tells me I need to go make friends so I'll ask him if I can hangout with so and so and he'll tell me no. I don't ever hangout with friends unless he's there and then he starts doing all of this...I'm worried and so frightened. I'm not sure what to do or think. He is constantly going through my phone(if I even mention that I want to look at his, he threatens to leave me) when there's nothing there. He has been going through my Facebook friends on my phone and deleting all the females we have as mutual friends. Makes me feel like he has something to hide. Like, why? Are you doing things you shouldn't be doing? A great deal of them are personal friends of mine. He even went as far as deleting my own nephew's father. He is the only way I have of seeing anything about my nephew since my sister doesn't talk to me and my SO knows this. He made me make a whole new account because we "had too many female mutual friends that I shouldn't be friends with on there." He has laid his hands on me numerous times. He once shoved me and I almost fell down the stairs so I instinctively grabbed him to keep my balance and he screamed at me that if I ever grab him like that again, he's leaving me. He just seems weird and sketchy to me and I'm so lost. Please...some advice. Again, sorry this is so long.