Tell me if u think, This is messed up.?

Yesterday I'm on face book and was gonna show, My sister the puppy my uncle got and knew my 13 yr old cousin had a pic of it. I get on my page then searched friends and I was shocked to see my cousin Un friend me??? I was like WTF I'm only family when it comes to money for BD & Christmas??? I was upset with her the other day while at my uncles house (Her parents house) When I noticed she has her friends listed as her ''family'' I think that's messed up. I understand she's 13 and like most 13 yr old's, They want their space but I got admit that did hurt my feelings. I can't wait to ask her why, She UN-friend me. By the way she's been acting like a real witch lately towards me.