Who was wrong?

My best friend and I got into a huge fight. I told her we might not be able to hang out a lot this summer because i would e going on vacation in august for 2 weeks and in July it's really hectic, weddings. She told me she didn't want to be friends anymore because we wouldn't talk at all in high school( I told her we would and we would always be friends). She said she would still talk to me at school not to make it awkward but I told her not to bother because I didn't want to be friends with anyone that didn't want to be friends with me. She started saying sorry and that I would always be her sister and stuff like that but my dumb self told her I was done and sick of the drama. She then said she was too good for me anyway s i called her fake. The next day i sent her a huge apology message but she was done with me by that point. She told everyone at school I called her fake but didn't give them the whole story but they know me and didn't care. I'm starting to miss her a lot and I don't know if it was my fault! How do I get over her and was it my fault for ruining our friendship?