I think he is probably interested. From my experience, guys are often afraid that a girl doesn't like them. With my boyfriend now, I asked him out on our first date and I thought that made it obvious that I liked him, but he told me after we were dating that he still had no idea as to whether I liked him or not. I seriously was obvious!! Haha. Because I kept making the first move he finally figured out that I liked him and then started asking me out on dates.
Whew... now that was almost 3 years ago since we started dating.
