I am very impressionable. I am so impressionable that the self that I call mine seems to be no more than a hodgepodge collection of everything I have thought, everything i have experienced, everyone I have been around. I used to be very reckless in my youth with what I did, what I chose, what I thought. I wanted to try everything and everyone, wanted to know what else was out there in the world. Everything I did changed me, though, for better or for worse. I didn't realize it at the time, and didn't really realize the extent of it until relatively recently. That thought has made me more circumspect.
I feel like this must be true of non sociopaths as well, but maybe to a lesser extent. Maybe they just don't acknowledge the inherent fluidity of the self? It's interesting to me to think that my body is made up of everything that I have eaten. There is literally nothing about my body that I haven't ingested at one time or another -- not my brain, not my heart, not my lungs, not my eyes or teeth... it's weird thinking that I am made up of cheeseburgers.
People want to know why sociopaths have a hard time letting go sometimes. Some of it may be the thrill of the hunt, the sting of defeat, or vindictiveness. I think for me it is mainly because everyone that has ever been close to me has become a part of me. Like that Paul Young song, every time they go away, they literally take a piece of me with them.