Am I just a little crazy?

[Pr]

No you are not crazy and I guess that you are just curious to know whether he likes you or not. That is just human nature. Ideally you should really have tried to speak to him - face to face - that way you can actually read all the subtle signals being sent out by his body language. Contacting him by Facebook is a bit of a cop-out - maybe your message didn't provide enough scope to respond. My suggestion is that next time you see him, go up to him - say "Hi, how are you?" followed by "I sent you an FB message did you get it?" - his responses - or lack of them - should be a much better pointer to his feelings about you. Good luck and take care :-)