Is this stupid to be mad over?

I have been talkin to this Ndn boy for almost two weeks now. I'm white. He is real big on family and works a whole lot. I really like him. On friday night we were supposed to meet up at the game and he was gonna bring me home. Well i seen him at the game and texted him and told him to come sit with me and my friend, but he said he wanted to sit with his family. so i said ok and sat there with my friend and watched the football game. At half-time we went to talk to him, and i went up to where he was sittin and he just looked at me and had this oh-crap look on his face. Well there was no where to sit beside him so we sat up above him. He never even acknowledged that i was there. So i got up and left. I was kinda mad. I mean yea he might be shy but he coulda said something. Like hi. He can text me all the time. Real late at night and real early in the morning. i just don't understand. So i ended up not riding back with him cause i figured it would be awkward. I'm good friends with his brother who i think is absolutely just so cute, so i talk to him about it and he just thinks it funny and has nothing else to say.. Should i be mad? Should i talk to him? or wait til he wants to talk first? I really like him i just dont know what to do! Help me please!