ASDs may be thought by others to be sociopaths, especially if they are particularly underwing and or more seriously abusive then others. However, ASDs (typically) actually care for other people, whether they are capable of showing it or not. Sociopaths believe that emotions are weaknesses (in an extreme way) and that other people exist solely for their own amusement. They may frequently pretend to befriend someone for the purpose of "psychological experiments". They will either feel pleasure because of another's pain or they will feel literally nothing due to the other's pain, such as they would if the person had said "My favorite color is blue". When they "feel nothing" due to another person's pain, that means they also do not feel uncomfortable. This applies to all other people including their boyfriend, parents, best friend, etc. He may get married just to be able to have an always-willing sex partner. A mild sociopath may just be friendly and fun, but will not have any close relationships because he is not interested in them. He may not actively try to harm people, but will not be sad if a longtime friend leaves because he can find someone else to help him have fun. At the opposite end of the spectrum is the worst kind of sociopath, who will do the "psychological experiments". Whether one is a sociopath is not the result of what can be casually observed about you by a mid-level friend, but rather by what you are thinking when you do things.