WTH??

Went to a bud's house this afternoon, and had a great time. I've been feeding him my load since the beginning of December, and he's great at what he does. This afternoon, he asked me over for dinner at his house sometime later this week. I'm not sure what this means, but it was prefaced with asking me if I had a partner. I told him I'd see what night works well for me, but I'm kinda surprised by this turn of events. Any thoughts?