Trait 9: Feel no love
Humans are hardcoded to feel love, it’s a natural emotion that none of us can run away from. However, a sociopath does not feel any real love for anybody but himself. They don’t care how much the other person is doing in trying to make them happy, they are extremely selfish and they feel that they deserve all the love they can get but do not feel the compulsion of repaying back any of the love that they have achieved.