I'm not sociopathic (I don't think that's what you were looking for, sorry) but I enjoyed reading your story. I may not relate to your circumstances, but the feelings are familiar to me and i'm sure everyone who has experienced hardship. Feelings of awkwardness, the need to blend and not feeling truly understood. I have my own issues which brings about those feelings too. I have to say, your post was very refreshing. The other 'sociopaths' (undecided whether to call bs on most of them) on this site are very reluctant to bare such depth. I don't know if that's fear on their part, but anyways. It seems that they use the site more out of boredom. Whereas people like you are looking for insight and wisdom.
Just a word of caution, you can say things here that you can't to her (in your real life) that she can use to control you with or turn on you with. Go slow. Impluse control is not a socio's natural quaility.