F [19] my best friend of the entirety of highschool stopped talking to me unless I talk to her first

This has been going on for about a month, and we recently graduated. She had a couple of other friends that speak her native language and I feel like she wants to leave me behind in order to be with them or something. At school she would recently generally not talk to me unless I speak to her first, and if I did I sometimes get a response and a look that just says «why tf are u talking to me» or a tired response of some kind. And then her friend starts talking to her in her native language and she’s all full of life again and talks like he is the most engaging person ever. Didn’t even get a picture together on graduation because she was «too tired» and took a pic with the others a minute later. This goes for her other friend too. I just feel tossed aside. For a couple of weeks now she stopped sending me tiktoks or snaps, and every time I ask to hang out she shuts me out, only to hang out with them instead. She only texts me first if she wants to know some drama or something. We aren’t going to be at the same school next year, even tho I considered it because of a different class I wanted to take there. She said that she didn’t want any connection to her past life and was happy I chose something else YET she shared a room with one of her newer friends. Idk what to do, i don’t want to loose her like this. I am a bit mad aswell and I want to call her out on it but I don’t know how. Any advice?