My friend keeps putting me down?

[LittleMixMuffin]

I WANT it to stop now. It's the most ruddest thing and my friend will not knock it off. Every second she gets she will say something about me. I know it's a joke, but it's constiantly. I'm at this concert right now, and she knows it's for my brithday. She sends me a FB message of: 'your profile pic is SO funny!' than another one: 'lol hilarious!' It's a pic of myself wearing a hat my mother got me as a present. I feel terrible now I'm worried that everyone will think the same thing! It just put me in a bad mood, and I have this concert in a few minutes...I want to cry. The funny thing about it all is, her FB pic is not even of herself, but a celebrity. She knows what she is doing, and I just ignored the comment. Should I stop talking to her?