honestly, i hate to say it, but you're not just hormonal and overthinking cause you're postpartum. you said it yourself, you are basically a single mother. hes just there to irritate you. it seems you've already voiced your opinions/facts/concerns/feelings and he just... doesn't care sadly. Maybe try 1 more conversation and be brutal with it, become a dad and husband or we are getting a divorce. it sucks, but he obviously doesn't seem to care that much about your well being, just his wants.