Am I expecting too much?

Ok so I need an outsiders opinion.

Me and my parter have been together for almost 2 years, we both study full time and work part time. I work nights and Saturdays, he works Thursday and Saturday.

Sometimes I feel like I've just 'settled' for him and i'm not sure if i'm just overreacting but this is just one example of him:

Tonight I was working 5-9, it got to 7 and he asked how work was and I told him that I was leaving because I had an argument with my manager, I was upset and so I told my manager I was going to go home and be back tomorrow. Anyways I told him and he said "aw, i'm going to the gym come over after" which is like yeh ok fine i will but he didn't even ask if I was ok or what happened. So anyways I leave work at 7 and go to his to hang with his sister until he's back from gym then when I'm with him I get nothing, he just chats for about half an hour with me and his sister then falls asleep on the sofa so I say i'm going home. I then messaged him saying I need some time away from him because i don't feel like myself lately and things are getting too much to which he replies "ok well it makes me feel like shit that you don't wanna see me but you gotta do what you gotta do" ...... again, not even asking if i'm ok or whatever. I reply saying this... *picture attached* and that's the response I get....

like why does he not ask me if i'm ok or comfort me in any way? we've spoke about it a few time and i've told him but it never changes? What can I say to him? I'm now sat in bed typing this and crying because I feel like I just need someone to cheer me up and tell me it's all fine but he's not there for me?

P.s I normally wouldn't message him about things like this, I would normally say it to him in person but because I had already been crying over my argument with my manager, I couldn't even say it without crying again.