What could this mean?

okay, i liked a girl and i think she likes me too, we've been best friends for 4 years and planned to get together next year. we hang out a lot and talk a lot. our friends are saying we're unofficially a couple. but the things that we planned together to do together is not done,but she does it with her other guy best friend who happens to be her clmate( i'm not in the same cl as her)