This is really weird. I have this ex-best friend. we went out and then after the break up...our freindship didnt rlly last. This weekend we went on a grade-wide trip, and she completely ignored me unless i was with another girl. When we went on a tour, i walked aroud with this girl and she followed us with her friends. On the bus ride back ( 10 hours ) she completely ignored me (she was sitting with this guy for half of it but they didnt actually do anyting ) till i was sitting next to this girl with my arm around her and such but i wouldnt talk to her. She also seemed really mad at me the whole time and even inulted me after ride. whats up with her?