Girls what do you think is wrong?

Today during a free(we go to high school)the girl i like and her friend(I'm friends with both of them)were walking down the corridor and walked right past me.My crush didn't look but the corridor was kind of empty plus her friend looked.She does this often.Then as they were coming back from their lockers i'm walking towards my locker.They see me then my crush makes them go the other way which is a bit longer.As i'm at my locker i see them running past a window laughing a bit.I sat with them and a mate of mine during the free and when my crush was talking she made eye contact with everyone but didn't look at me(she also does this often).She only looks at me when i directly ask her something.As my crush and her friend were leaving my crush looked back at me.Shes been acting wierd with me for about 2 months but I've liked her for 5 months.She used to treat me normally and i havent done anything wrong.If you want more info on her behaviour towards me you'll find it in previous questions.