Losing someone you love.

I have a friend that treated me like a real friend, then all that changed over a stupid email I sent. She wrote me back with a response that I will never forget. When that happened my heart was torn into pieces. I saw this coming but its hard to tell visions from dreams when I have them. When school started after spring break I gave her my present for her birthday even though we weren't friends anymore. The rumors started, and the weeks went by as I saw the image of the email in my dreams never stopping until one day I finally talked to her and said I'm sorry for what I did, can we work up to being friends again ? That finally came to be but she changed after her birthday now she is random, different. I feel like she doesn't even notice me some days. Sometimes when I have a problem she seems like my friend. But on a regular day she doesn't notice me. When the day came to when someone threatened to beat me up at school she let me her hang out with her. She gave me a hug and said "Don't worry no one is going to hurt you and if she tries she'll go through me first". I don't know what to do but cry in my room at night thinking about what I have done in the past being filled with regret. Sorry friends its time for me to go I don't belong here but I love you all and thanks for the fun throughout the years.