What would u do if ur friends treated u like this?

my friends have been acting really weird lately.. even tho we are at the same school we take different cles and i dont see them that much.. they see eachother everyday tho.. and even tho they promised it wouldnt change anything they hardly ever call me or ask to meet.. and half they times i call them they dont pick up the fone... i even found out they went away for the weekend without me.. how do i tell them that they are bein aweful friends without fightin with them cause i hate fights and always end up cryin at fights? and i dont wanna give them that satisfaction of seein me cry.. how would u tell them they are being bitches? oo i should also mention that one of them is probably in love with a friend of mine therefore i feel she is kinda jealous of me and this is y she is actin like this..