Boy help (I'm new to the whole boy thing help)

Hey I'm fourteen and new to the whole boy thing( yes I'm one of the wierdos who haven't had a boyfriend yet) and I have had this huge crush on this guy , he is in one of my best friends classes that I'm not in and have heard he has been flirting with her. When she talks about him she tries to hide it but she is crushing on him bad but she is such an amazing friend she won't say so or just brushes me off. I have absolutely no chance with this guy but my friend does. Should I pretend I don't like him and let her go for him(or by the sounds let him go for her) or well I don't have any other ideas