I need help with having boundaries about sex with my lover

Hi I need a third party option. I feel like I’ve tried it all at this point. But to cut the story short, my ex broke my vagina (tore at the bottom; we had sex in the dark no lube or foreplay..) and its very sensitive and can get sore very easily. I explained that to my current bf but now I feel his patience for me is getting worse.. I can understand he’s sexually frustrated and I told him I would try to be more sexual active and I have been! For all of this week ALONE, I have opened my legs for him when he asks me. But we keep getting in augments about it and I’m tired of being making me feel guilty. I know that’s not his intention, but every month we have the same fight about sex. And how I don’t do it enough with him. But this week I had sex with him almost everyday, except for yesterday (the fight day) and MULTIPLE TIMES IN A ROW TOO. I don’t know what to do or say to him anymore to get him to understand I need a break sometimes.. it’s painful for me to wear myself out like that. Especially bc I just started working full-time and my body is trying to get used to it.. and he always asks to have sex at the worst times and then thinks I’m crazy for not wanting to have sex on HIS time. I’ve told him multiple times when he does that it makes me want to stay away from him more and doesn’t make me in the mood when he asks over and over again. Why do men not listen? Then say we complain about everything, but yet dont listen to what we are even talking about in the fucking first place. I’m tired of feeling stupid about my own feelings and that everything I do is wrong. We were on the verge of breaking up last night (mainly him breaking up with me) it didn’t feel nice, my heart broke in half and I didn’t stop crying that night.. I cried all night.. like usual.. alone and quietly. He makes me so happy but I feel like I’ve sacrificed my whole life to be here for his child that’s not even mine.. and yes he does appreciate me helping but I want him to also gain more patience for me.. I get it I am mentally exhausted and unstable. But I have been trying my best to communicate better after being abused for 16 years. I tried to explain to him I’ve never had the time to heal for myself I’m still so young (19) and can’t even finish my A.A. I have sacrificed my education, I am trying to go no contact with my family and it’s not easy. If we break up I will have no one else, I will be homeless (even if he says he won’t kick me out idc I don’t feel comfortable in places where I’m not wanted. ) He thinks I only stay bc of the housing situation but trust me, I would rather live in my car or a van then live with his mother, brother and two roommates, which one hates us.. He is the only man I’ve been comfortable and honest with, even when it comes to sex. But I feel he’s getting tired of me and just wants to get rid of me. I try to remind myself he does love me, and he has done a lot for me, he’s supportive and kind, always on my side whenever I need him to be, except for this continuous conversation… I need advice and how to explain or what I can do to make my relationship last.. we have been together for about 2 years now and we were fast. I won’t lie, from the beginning we have everything in common, told stories like we were best friends! Laughing and joking about stupid stuff like I still feel the love and Ik he does too. But I’m afraid I’ll loose him and the only family support system I’ve ever had.