What would you do if you found out someone is trying to act exactly like you?

[LiL FR34Ky Grl]

Well, recently, me and my bf broke up. And the gurl hes with now was my best friend. But i found out she was the one that broke us up. She was saying alot of bs about me. And i really dont know what she said. But me and my ex were unseperable. So i dont know how she did it. And recently i colored my hair, i litteraly changed my appearence. And i also had gauged my ears acouple months ago. And now shes trying to color her hair like mine and also she gauged her ears! Im like wtf. And shes also trying to dress like me. The b*tch is crazy and needs to go somewhere. And im like the rocker type chick. And i really dont care but its funny how shes trying to be like me to impress my ex..? But what would you do..? I wish i caould smash her face n the curb. But everyone is like shes just a waste of you time. Not worth it. So wut would you do if you were in my shoes..?

Thanks!
And sorry for the story! .