I don't find it unusual. I prefer to be alone, and have always been this way.
The exceptions are with my husband and my kids. One I chose because he makes me come alive, the others...Well, anyone who says aspies can't feel love for their offspring are full of it
I've noted within my own life that although I'm capable of "connecting" with others, it's an experience I do only rarely. More often, people seem to seek me out for friendship, and I'm baffled. I also have difficulty retaining affection for friends. More often than not, I walk away without a word.,,For months or years at a time. It's not like there's anything wrong, I just prefer personal solace to being around others.
I learned to do the whole "social function" thing out of necessity, when my mother would push me into the debutante circuit and try to get me to mingle. It caused such an all-out rebellion, though. I despise the clubs she's in, and I really don't see the point of congregating in that respect.