Is he just shy?

A little background: Right now, I am wondering if my crush is interested in me or if he is REALLY SHY. I managed to ask someone that is his classmate (I am friends with A, A is friends with B, B is my crush's classmate). I approached B and asked if my crush was attached or likes anyone and he told that my crush was shy and not the type to look for relationships. B's exact words were "he is communicating with a girl now, but he did not say he likes her". Now some of you may think that I should not have done certain things. I did indirectly let my crush know I was interested through B. B told him my name and brought me outside his class because my crush said he wanted to see my who I was. When I went back outside his class as B was still communicating with him through the window, his expression looked really shy and B told me once again that he is a shy guy. 2 days after he saw my face, I saw A skyping with B and when B saw me, he brought his laptop to my crush and when my crush looked up, I waved to the screen. He LOOKED DOWN. I went away from the camera and my crush looked back up again and stared into the screen, I tried waving again but he only stared and B took his laptop away. . .

I received 3 different opinions about this situation from my friends. He is Shy, Not interested and Simply hard to read.

Now, my main purpose is finding out if he is really a shy guy. He is REALLY POPULAR. I already know of 3 other girls that likes him. He is also a student leader which means he handles camps or orientation programmes. Also, he is in a band as the guitarist and has performed on many stages. His Instagram is full of pictures that he got others to take of him, wouldn't this make him seem pretty confident of himself? All these make it hard for me to believe he is really a shy guy?

I decided to approach him because we have been making a lot of eye contacts and my friends even tell me he is looking at me. However, I really don't know what is going through his head after the recent events. Advice please! It will be great if any of you can tell me why he would not even wave back sigh. Maybe its really NO INTEREST.

Thanks all! ^^