Friends

So i have been friends with the same group of girls for the past 5 years now (we are in 8th grade) and last year this girl named aya joined pur group. I had no issue with that i was friendly to her and nice but she decided that she hates me. I have put up with her for a year and whenever i talk to my friends she will roll her eyes and pull them away from me. I have confronted her about why she hates me and she just said "idk." I went to the dance with my friends and she looked at me and said "why is she here." I tried to defend myself but my friends got pissed at me. I dont know what to do anymore i want to be friends with them but i cant stand aya. What do i do???