I would not call it as Multiple Personality Disorder. I would put it as (i) Real Me; (ii) The Real Me, I want to be; (iii) The Real Me as perceived by others. Each entity views only one side of personality, hence the apparent differences. If you closely observe there are only two categories; viz. (i) what we think we are; and (ii) what others perceive us as. There is no observer to record the status of "what we really are" All the three (or correctly two) can match only when there is no hypocrisy and there is no error of communication and understanding between the transmitting and receiving entity.. Whole lifetime is spent in playing of games. But mostly the different phases are kept compartmentalised so whole lifetime has to be spent in endeavouring to keep them separate. Selfishness will always win in the end and also when one concludes that mask can be thrown away with least personal damage. That is why you will find people divulging personal emails to the whole world after a relationship has soured, although while exchanging emails etc. they would have sworn to secrecy for ever. Everyone dies with some unfulfilled ambitions so no one can reach the status of master planner. As regards winner or loser, the self always think of itself as a winner overall, while the counter-party always think that he got the better of the other. The reality is somewhere in between.