Is it me or am i being dramatic?

Okay... So im sexually active ive been since i was 15. Ive been with my boyfriends for about 8 months now and we use to have sex all the time and now it doesnt seem like he cares. Which is weird because ive never had a guy not want sex with me? We last had good sex around april 15th and im sexually frustrated!!!! I've tried talking to him about it and telling him im sexually frustrated (which is rare because i dont have a high sex tolerance) (i was molested by my uncle for a few years before i spoke up. Thats why i dont have a high sex tolerance.) But he just says he doesnt want it. And that hes had two sex injuries which didnt seem that bad so it seems like an excuse. Its been over a month and nothing so i got frustrated and started rubbing his dick on the couch while his parents were sitting right there and then he went down stairs and sat in the room because he was "hard" so i went in after him and he had sex with me but i feel like it was just out of pitty like he felt bad. He didnt even finish... I asked him if he masturbates and gets himself off and he said ya... which makes me feel terrible. He touches me and stuff gropes me just for fun but he wont get me off... am i wrong for being upset with him? am i the only one going through this?

UPDATE: alright sorry guys i guess i should made my story more clear just didnt want it to be a book. Im 21 not 15 ive been sexually active since i was 15. (safely with condoms and bc) he says he loves me and everything it just doesnt feel like that to me. Hes distant and when he sees me naked he doesnt even bat an eye. (no hes not cheating we are with either a lot) I wasnt looking for you guys to tell how bad of a person i am. i wanted to know more if its happened to other people and what their experience on it was. i just feels so unattractive to him and i hate that because i really do love him. And the whole grabbing him infront of his parents. We were under a blanket and it wasnt noticable. He gropes me infront of his parents all the time. i was just trying to be different not in a disrespectful way. and when i followed him downnstairs if he didnt want it he would of told me no like he has been this last month and a half. (in which i would of respected) and by the way ive been masturbating to take some of the frustration away but it only helps so much and it makes me feel worse knowing i have a boyfriend but he doesnt want it from me. but he will do himself