I feel like my boyfriend deserves better.

Trying to make a long story short and spare some details- I have a physical disability, my boyfriend does not. When my boyfriend and I first started dating he was living with his abusive mother & following a rough upbringing had no job, no car, no nothing. Since we've been together, less than a year he's held a job for almost 6 months now following a stint with seasonal work, got a car & a license, some certifications and is about to begin classes for his GED before starting school in the fall. I know he's turned around because he loves me. 

We've been going through a rough patch.  I had a lot of tragedy in my life. I'm not always the nicest, most understanding person. I'm extremely hard on him. It had been so bad between us I've shoved him & he's shoved me etc. There were a lot of tears, that was a month ago. I'm sparing details of course but I think things have leveled out. We're very similar and due to our pasts have issues communicating because we're so guarded. One of us feels attacked. 

My disability has meant issues in the bedroom meaning it's extremely painful for me we've tried everything but I feel like this is a source of resentment between us, he's sad it hurts and he can't fix it & I feel this is extremely unfair to me. I finally found a doctor to get some answers but still. I feel like I'm holding my boyfriend back from so much, there's so many things he has to sit out on because I can't do & this doesn't count all he has to help me with. 

I just want him to do normal things in his life. Things he enjoys. I want him to be happy. I don't know, I'm just extremely sad right now.