Do you get angry when people copy you?

i have this friend... and she copies everything about me, i speak in a well spoken sort of voice, when i first met her she had a really common sounding voice and now it's exactly like mine. Her vocabulary was very limited i've ( i don't mean to sound supercilious) always been articulate... now her vocabulary is reminiscent of my own... I'll have a look then she'll have my look...I'll dye my hair one way with high lights... then the next week her hair will be an exact twin of my own...Her make up is always an imitation of mine... ( this one is a bit tedious but...) i'll have something as my status on facebook then she'll have it as her a couple of days later...The way i construct my sentences she'll construct hers like mine... My sense of humor is now her sense of humor... Thing is, i do really like her, but all this coping is making me really REALLY resent her and limit the amount of time i spend with her... is that wrong of me? Why does it bother me so so SO SO SO SO SO SO SO much?... it's genuinely making my blood boil just thinking about it...