How do you guys view this? :/?

I was best friends with this girl for about three years. We were pretty much inseperable, we spent every day together and she would text/call me all the time! Her family, my familyand I all noticed that she was posessive and overall she was never all that nice to me, she basically used me as someone who would always listen to her and go with her places. I did SO much for this girl, like unexplaneable things. I always went above and beyond for her, and I couldn't tell you why because I never got anyhing in return besides complaning and her trying to put me down with her dumb comments. Recently, she told me to look at her facebook and I did which I saw picturs of her and her ex-boyfriends current girlfriend (WEIRD AS HELL that she chills with her..pretty psycho if u ask me)anyways, the pics were of them getting trashed and it was just nasty pics. So i told her oh wow cly pics, hahaha. and she flipped out and told me to stay the eff out of her life, not to bother with her anymore, that i was annoying as hell, a piece of crap, she is sick of my highschool drama and all this nonsense! All because i said one thing... Besides the fact that it hurt to hear her say that, just that she could say that to must mean she really didn't like me. After all i did for her. So i told her she was a horid friend anyways, she was crazy and psycho and a ..because she is one. But, that was 4 weeks ago? Now it's like i wonder if she ever thinks of me.. I DON'T KNOW WHY i think of her and kind of miss her..maybe its the memories i miss? I dunno..any advice on this? Thanks!