She sits quietly in the corner of the classroom, and idolizes the girl with the flowing hair and wistful manner. She admires the styles she wishes she had had the mind to put together herself. Jealousy ensues. She starts to dress like her, carry herself like her, talk like her. Finally she gets her hair done just like her. She gets a compliment. She is satisfied.
There is a dormant period. An intermission. Maybe when classes have ended, and she goes back to her solitary, isolated lifestyle. She is depressed, unmotivated. She finds a friend on facebook. Her friend starts posting artwork. She falls in love with the work-- it moves her. She just has to outdo her friend. She starts practicing, drawing (many of them copied from her friend), and posting them. When she finally starts getting compliments, she is happy.
This type of cycle repeats itself. Always, she wears the face, image, mannerisms of someone else. Everything she does is a competition with someone else. This is how she identifies herself. The person in the mirror either successfully lives up to, or fails to live up to someone else. Someone she idolizes. She knows nothing of herself, or rejects herself, or might possibly even hate herself. Maybe there is no self, or the self was suffocated long ago.
She is a chameleon, and lives her life wearing other people's identites.
Is this narcissistic, borderline, or histrionic. I know it must be one of them, just not sure which.