Should i be mad about this? Help!?

Okay. Me and my friends sometimes talk about baby names. My 2 girl names are Chesni May and Rebekah Taylor. Well my friend ( knowing my names) decides she wants to name her's Rebekah Taylor. I told her that was my name i came up with and she goes no yours can be chesni may and mine is Rebekah Taylor. What should i do? is it bad to be mad?