Help me!!!! dis is about my friend ?

i have a friend who i think is really wierd. when we have a fight it, she completly ignores me. she jst doesnt wanna hear me out. nd sometimes its not even my fault. den she spreads rumours and tells everyone who i lyk. i even give her notes tellin her im sorry. i get reli pissed nd sometimes i even cry. my group lyks her nd if i tlk bout her behind her bac one of mii other friends tell her. so i cant do anything and i'm scared if i tell her all this i wont hav any friends left. Plz do help me