identity disturbance
BPD--sense of identity is not there, not stable, tends to change depending on who is in their environment
eg. JA...wanting to join the Mormon church quickly
eg. DB said that JA bought a certain car, colored her hair in order to be like his ex-wife
eg. with MM, they were living in a tent, whereas when she was around DB she acted more mature, shifting depending on who was in her environment