Welcome to the 'hood.
I've always been somewhat fascinated with the concept of asexuality simply because it's almost completely opposite of my general outlook that I find it a difficult concept to fully wrap my head around.
Perhaps it just comes from being a horny little spider monkey but sex (or at least physical intimacy) shapes a lot of my personal relationships.
There was a young woman taking classes at the college I went to for a few semesters who was asexual. The topic came up in class and it was discussed for a bit and I saw her later out of class. I had to talk to her about class anyways and after that we started talking about sexuality. I would compare it to first contact between two alien races:
"So you are generally always thinking about sex?
"Not ALWAYS, but yeah a lot of the time. You NEVER think about sex?"
"Not really. Do you look at a total stranger and think about sex or do you have to know them first?"
"Total strangers can be sexy but they generally dont stay in the memory too long"
I am as direct as a T-Rex with 'roid rage and about as subtle. It isn't intended to cause upset, I just prefer to talk plain. There are plenty of other people here who do the nice, polite thing much better than I can. I'm what you'd call a "problem dinner guest."