My husband is creeping me out

Hello I would like to start with that I have been with my husband for 10 years before we even got married he cheated on me twice I didn't find out till 5 years into our marriage he came out and told me but cant believe he can hide it that long. then he made me have a threesome told me it would make everything better so I didn't it was the hardeset thing ive ever done i was so discusted and I hated myself for it made me feel insecure and like I wasn't good enough for him afterwards I was in tears and poored my heart out to him about how it made me feel not only that he told all his friends about it when I thought it was suppose to be personal I felt horrible and then he told his friends how I felt him and his friends kept saying I was jealous well I told him afterwards that my fear was he would try to cheat on me with her behind my back well surely enough he did try I caught him saw every text the girl showed and told me everything I couldn't believe it. not only did I poor my heart out to him he obviously had no remorse about how I felt about it he then try's to cheat on me with her. he has no remorse for his actions im just trying to figure out what is going on with him right after marriage I learned he had a porn addiction he also is very negative about everything to the point I get nervous to ask about anything or bring up ideas about something cause I know im already going to be turned down or hes going to have something negative to say. here lately things have just gotten worse now its like he has a obsession with photos I looked through his email and he has been screen shotting photos of my sister with out her knowing and he hides them in his email and there is several other girls photos of them that hes hiding that he gets off there social media acoounts I ask him about them he lies and says he was showing someone well I asked them they said no they never sked to see them. and then ive been catching him trying to spy on me hes constantly trying to catch me doing something last week me and my sister were outside on my porch talking he was asleep in the bed he got up and was hiding in the dark in a tree beside our porch ease dropping hes done that atleast 3 other times that I know of he thinks his behavior is normal. I think its creepy I just busted him texting 2 of my friends asking them to send him photos of there private parts and he was sending them photos of his penis hes become obsessed with photos. he is constanly wanting to run my friends off he says I don't need no one in my life but him. he is very needy he expects my attention 24/7 he starts acting weird if I dont give him the attention and starts thinking im cheating we have 5 kids I stay very busy to do that. he has made very bad choices when he gets mad he just blows up and makes bad decesions that have terrible consequines when hes mad he trys to take it out on our children every now and then. and when hes mad NO ONE can come him down or talk him out of it he will seem fine and then just explode with no sign and do something stupid. im just wondering does he have a mental problem that he needs medication between the spying, and photos he hides and anger and being negative and sex addiction I don't know what to do. his mom is crazy I know she needs medication but please can some one help me im exhausted in my marriage he laughs like a psycho when I confront him sometimes, its creepy that he spy's on me or he will just show up were ever I am