I don't know sleepie! I mean you're not holding a gun to his head to be with you.
You're clearly not dumb and maybe he likes taking care of you?
It's nice to feel needed.
Plus you seem good for him!
As for not reading your moods well- I think a lot men think everything is fine until you tell them it isn't, at least that's what I've noticed.
Plus you're an artist- that makes him look cool
He's got the cool artist girlfriend