What is going on in my relationship? please help?

ok so i have been with my boyfriend for a year now.. he has a kid and the mom still always hangs around his family. i see here at his house sometimes and i know shes jelouse of us but its like he dnt care that its unfair to me that shes around and not me . i cnt evn take his son places or have him around me or he will get mad idk y .. i know the mom dnt want me around the little boy but i dnt hurt him i always spoil him and he knws my name evn wen him and her walk by my house hell say my name and she gets mad at him.. i knw that isnt right bcuz ive nvr seen someone b in a relationship where the girlfriend cant be around her boyfriends kid. evn if the kids mom dnt like it the father has a choice and always lets the girlfriend be around...me and him have had our ups and downs and he seems to be mad at me for no reason... he is a scorpio and im a pisces .. wen he gets mad hell blame me and say i think its all about me when i dont think like that. he used to let me go over to his house which he still lives with his mom dad and sisters.. but suddenly he stopped letting me go ovr n wen i would ask it would cause a huge fight n hed moreless b telling me that it is over n he hates me.. we used to also spendd the night together since we first got together .. and he stopped wanting that also.. ? he can be happy than suddenly be so mad at me.. sometimes i have a serious question that boggles my mind and i would just like a positive answer evn thought its a dumb question. but wen i do ask it just cause a fight. he cant be talkative about our relationship.. he just says u know i love u.. but he has broke all of his promises his main one when he wantd to be with me he said hed never make me cry or have me sad but he makes me cry alot and jsut laughts or dnt say sorry or appoligize as ive seen people do wen they hurt someone.. wen we fight i dnt argue and call him names as he does to me. i evn leave him alone and then he will b the one txting and calling me .. when he dnt do that all the time he dont txt me bak more than half of my calls are not answered. and for my 2 birthdays he got a ring and he got mad the other day because he was thinking negative about me . and kept going crazy just for me to give them back saying i dont deserve them.. and calls me a ho when i dont think about talking to any guys or cheating on hiim.. idk wat to do or to think im so confused at were im at bcuz he has changed me and my ways.. i dnt talk to old guy friends or girl friends bcuz he thinks im lying i cnt evn leave my house and tell him were im going or ima ho and he thinks im lying bout were im going.. can someone please help me to understand what is going on is there something im not seein bcuz to me it seems as he dnt want me so when im done hurting n cryin because of im i tell myself ok this was it the last no more tears.. but wen i do that he just comes back and is happy and acts like what he said and did was nothing or never happened. please help me out to understand or see maybe im not seeing something. am i in the right is he?