I'm responding here VS in the other forum based on Anika's responses.

It definitely has to do with upbringing... Even though I have ASPD, I have developed a way to cope with my lack of affect. Since some members of my family were more caring than others, I figured out how the dynamic worked & broke it down on an intellectual level that I could understand. Essentially, anyone that I "love" is essentially someone whom I've developed mutual respect & can view as vital enough to myself on some level that they become an extention of my own wellbeing...
Granted, should I be slighted, they are gone in a split second. Even with the most miniscule suspicion of disloyalty, they have to prove their way back into my circle. But it's a system & it has worked for me. I love my boyfriend & can comfortably say that. He treats me better than anyone ever has over the entirety of my life, he respects me & all of my flaws, he is incredibly interesting & talented & intelligent... And frankly, I am tired of the "getting to know you & trust you" process that is inherent in developing relationships with people. It's a very comfortable arrangement & I am counting on it lasting for my whole life.
That is a lot of the reason why I joined the forums in the first place. To learn more about myself & others so I don't sabotage myself by making others' mistakes.