To expect more

[Chattyham]

Partner of 15vyears and I have 3 children. 9, 6 and 3 months old.
baby is pretty easy going, kids are pretty good too.
so partner will play video games until 2am then sleep in until 11/12 as he’s tired leaving me to wake with baby each morning, sort kids and all the rest of it. This morning I needed a bath so woke him saying baby was sleeping on the bed and I was going to the bath could he keep an eye on him. He said yes. I came out of the bath after 15 minutes as baby was screaming next to partner and I t didn’t even wake him!
there’s lots more like not taking responsibility, not thinking about the bigger picture or when I need help etc.

Clearly he is being very unreasonable.

What are you asking us ?

Yes of course you should expect more OP, so communicate with him, tell him if you don't think he's not doing enough, not thinking things through properly, etc. Has he only recently started this behaviour though, as if he's always been this way, then you should have stopped at one child instead of going on to have three, so if that's the case, then you've made a rod for your own back I'm afraid.