How unable are ppl with mental disorders (like BPD) to live normal lives?

My husband has Borderline Personality disorder. He claims he has frequent head problems and pains and therefore is not able to go out often like normal marriages do, or is sometimes not interested in engaging in any type of activity with me (including sex). Truly, I feel super deprived in all departments when it comes to our relationship. the most we do together is watch netflix while he paints his minitatures. ive tried talking about it with him, but he gets angry that i have these thoughts. he always says that nothing is good enough for me. we go out to each maybe once every four months if im lucky. we have sex maybe once every three or four weeks (and thats declining). he says that he washes the dishes, and cleans around the house as prove that he is trying. on the occassion, we talk about stuff, which is another form of trying for us according to him. am i in the wrong? i honestly don't know.