It is strange to see someone fit your bones into her body, wear your skin and speak your language so comfortably - it is like standing in front of a mirror and looking at yourself in a new light. You could become friends with who you see, or take a stone, maybe, and smash the mirror to destroy what appears to be a result of your effort. Seeing your reflection anywhere else but in the mirror only is one thing, and having the same name is another... You have two choices. You could become the destruction of a self that isn't really yours, or go away and give in to the one who scrapes off your skin to leave you feeling cold and bare.
If I were you, I will put up a fight. I always do.