Hwelpp

So I have an ex and after we broke up we agreed on staying friends, but yesterday i wrote to her as usually and she responded like some kind of wuss and said that she doesnt want to be friends with me anymore and dont i dare bother her with texting to her about my shi and I should leave her alone. I asked what happened or what have i done though i didnt do anything and she said ive changed a lot these years and im irritating her n stuff so if I keep texting her im gonna be getting blocked. Now she doesnt respond to anything and im so fckn depressed cause we were literally best friends as well and she promised to never leave me even if I do a crime or smth like that, also she lives far away so we might never meet again if this continues. No one understands it, everyone said just forget her but I FCKN CANT cause she was my friend and i cant live with the thought that she doesnt count me as a friend anymore. I rlly miss her tho idk what to do now, I think im gonna leave her for a few weeks and ima try to text her again. Im just afraid shell act like a bitch again. A few days ago she was all kind and I never saw this coming. I dont want to lose her