Relationship sex problems 😞

Please help me feel less lonely and hopeless. Any comments, stories, encouragement would mean the world right now.

My boyfriend and I have had problems for almost two years. He has always had a lower sex drive than me, and has made no effort to work on things in this arena. He is only 31, and not interested in talking to a doctor about it. I understand that some people are just less interested but we are having sex of any kind MAX twice a month right now. My drive has lowered a bit since having our baby 7 months ago but his attitude about it is just adding to my post partum insecurities. He seems relieved that the baby is now there so he has an excuse to never be in the mood. And he often jokes about it, saying how easily he could go without ever having sex again. He knows how hurt i am over this and we've talked the subject to death :(

Am I flawed for wanting the person I'm with to desire me? When he is interested in sex, it's very "my way or the high way" and has to be that very moment or else it doesn't happen. He's not asking me to do things I'm uncomfortable with, but his stubbornness is a huge turn off and makes me feel like it's not about me turning him on or my satisfaction. Thanks for listening to me rant, it's such a sensitive and emotional topic for me, and ontop of our other issues it makes me question whether we will be able to work out long term.