I wasn't your typical 18 year old either, I was homeless for my entire youth. In what way is he "taking care" of you? Like I said, I don't know a lot about Dom/sub relationships. But I can clearly see that this is abuse. There really isn't much guess work. Abuse comes in many disguises. I doubt his being emotionally supportive to your needs is that hard for him. Clearly he isn't doing a very good job of it or you wouldn't be here, or be feeling like you do.

Most worriesome is that this is having a huge negative effect on you, which is why you are seeking support here. I can see many red flags in just one post, it is usually harder to see it while you are in the midst of it.

I'm sorry but I can't say that this is ok. Even you aren't really ok with it. You are not blowing it out of proportion.