Hello ValentinaVVV: I don't really have an answer to your question. (I don't know anyone. So I couldn't know anyone who has BPD who has significantly improved in their ability to interact with others.) But I do recall being told, by my last therapist, that BPD tends to burn itself out as one gets older. So, if this is in fact the case, if one continues on in treatment long enough, improvement is bound to occur, I guess. Whether or not it is due to the treatment, or simply the aging process is another question.