Best friend help?

ok basically......i was best friends with this girl(alice) and there was this other girl (ana) hu just used to hang out with us....me and alice had a mive fight .... we made up but then i started hanging around with a different group.....so she and ana became best friends...now i have started hanging out with them agen.....and me and alice are getting closer....alone she told me that i was her best friend.....but she alsways invites ana over instead of me.....plus im not allowed sleepovers and ana is so therefore they hav more bonding time .... if u get wot i mean ?!.... i really need help to win my best friend back.... i mean he tellls me that im her best friend and everything.... but she doesnt seem to show it...... also we hav loads of fun together.....but whenever we are together.... ana allllwwaayyysss seem to be there....sometimes i think she just doesnt want me and alice to bond/!!!!! shes being possesive.....i consider alice as my best friend xxx