Relationship struggles after baby

Hi. This isn’t my first post about this but is anyone else and their spouse just having a hard time. My son never sleeps and at night we have to bed share just he and I unfortunately and yes I say unfortunately because I am totally against it but my son had surgery two months ago and now has separation anxiety and won’t sleep alone. My husband just doesn’t understand the mental load I am taking on right now and says things like “well didn’t you expect to do these things when we had a baby?” I know he doesn’t mean it in a bad way but men suck at being helpful especially on a touchy subject. Anyway we fight every night when I’m up here laying with my son at 7pm because he can stay downstairs and do whatever he wants plus I’m a stay at home mom and get no help all day. I’m just feeling overwhelmed and like I do everything, oh wait, because I do! Please tell me I’m not the only one. I’m sure things will work out but I am so over this I just wish he were helpful and I could take a break at some point. So tired of putting in all the work and getting nothing in return!