I have a crush on this cute girl from last 5 years and I am not able to tell her that I like her . I am 18 (male) .We used to study in the same class and she is the best friend of my neighbour girl who is not a very good friend of mine . Whenever she(my crush) talks with me I get nervous and just don't talk with her or ignore her . And now she has also stopped talking to me . What should I do ?