I personally would have a hard time figuring out what my "true self" is exactly, not to mention sharing it with other people, regardless of how close our bond is. I can only define it as a feeling of myself. As in, I know and feel that I exist . However, trying to apply any kind of characteristics to it would be near impossible. But I know that I am driven by some things, like the need to be independent for one, and to experience the various sensations that life has to offer, be they physical or emotional. On the other hand, if you knew me in real life, you would likely not see those aspects of myself, as I am severely held back by my fears.
Those fears however, are as big a part of me as anything else. And if I were to strip them down, I would also have to get rid of my motivations, and all else that can be described as a characteristic of myself, and all I would be left with would be the feeling that I described. To some extent that feeling is present in each role that I play, which is why I don't usually feel that I am being fully fraudulent, though if various different people would compare their experiences with me, they might certainly think so.
Some time in my later childhood, I got this idea that there existed a whole lot of different versions of me, living in some other worlds, and that we were all connected and filled in for each other when the need arose. I suppose that is somewhat applicable to what I am trying to say.
Truth is, I haven't figured all this out even for myself, and reserve the right to contradict myself in the future, as I am sure I have done in the past.