<human>: Could you distill the essence of the text into 1-3 sentences?

We have been together for 4 years. We have been through really tough times because of my problems with depression and low selfsteem, but he has been there for me the whole time, we have worked out our communication problems and we are completely happy since then!

I want to live with him, I really do, and I know he wants to, because he told me, but he likes to be alone more than I do. It's not only with me, he is like that with his friends too, so the "problem" is not only with me.

I respect his space, I'm not clingy and whenever he needs his space, I give it to him. I like to be alone too, but I miss him more than he misses me and that sometimes makes me confused and a little bit sad, because even thought that we have been together for so long, I sometimes feel that I love him more than he does (I know this is not true, this comes from my insecurities, but it's inevitable to feel like that sometimes when we are so different in this), because I don't know how we are going to get along when we live together. I'm afraid to overwhelm him fast. 

We already talked about this, and he is afraid of the same thing and I don't know what to do, because I feel that this is *his* "problem" and I can't do much more than what I do now (respecting his space, not being clingy, etc).

We can't afford a really big apartment (so any of us can be in like, the other side of the place and *feel* like we are alone in the place), that would be ideal, but it's not possible at the moment; but the apartment that we can afford wont be small either.
<bot>: My boyfriends likes to be too much alone, but nevertheless, he want to move in with me. I'm afraid to overwhelm him and ruin the excellent relationship we have.