My cyber beau?

So, I meet a guy in a chatroom. We talk and laugh. We like each other. We have many of the same values and we disagree about some things too. Just like real life relationships, right? The thing is, I can't see his face. I've seen a picture of him, but I mean, I can't see him when I am talking to him in cyberspace. I wonder if I am missing anything. We spoke on the telephone and I had pretty much the same feeling about him as when we chatted online. The last few days, he doesn't seem to be his usual outgoing, gregarious self. That has me wondering why. But, I'm not really in his life, so I don't really feel like I should ask too many questions about this. How odd is this? Sometimes, I could imagine getting a lot more involved with him. Meeting him in person and that type of thing. Other times, I feel like this is an imaginary relationship that is not meant to cross over into real life.