Fake Friends

So lately people think that I am a fake friend which I dont understand. I do so much for everyone and help everyone out. Then they say I am fake. I am real and Chuck saids that I am a awesome friend to have. If anyone knows me knows that I am pushover. It just hurts that certain people think of me like that. I have a few true friends here but I am begining not to let my guard down because I dont like to be hurt. I have a friend that pushed me away and dosent even chat with anymore. She used to only Im me when she wanted something which that hurt. I made her a cake for her birthday and she didnt want it. I hope that I can make it through a year at Ft Bragg with out my best friend. :( Has anyone else been through this before.