Is this is right thing to do?

Well basically, me and my friend aren't friends anymore I sent her a message saying I dont want to be her friend because she was ditching me for someone else, like she has in the past. Okay so she blocks me on Yahoo and Facebook.. very annoying. So anyway I've just listened to "The Fray - How to save a life" And a comment said she broke up with her friend, and she rung up, but her mum wouldn't let her speak to her friend she said she was having a bad friend, so she gets a phone call later saying her friend took her own life, and I cried so much and I never cry to anything remotely sad and I was thinking life's to short for arguing but I don't want to be her friend, I just don't want to be enemy's anymore.. Im sick of it.. :/ Anyway is this the right thing to do? Or should I just leave it?