Yes, "asexual" is the feeling I got from reading the article. He says that his blog posts almost never mention a partner. But even this post, specifically about relationships, failed to mention a single potential partner. That to me says he just may not be interested enough.
The word he's searching for could also be "asexual". It's recently been added to the increasingly cumbersome LGBTQIA abbreviation, so it's good it's getting some more attention.