Sociopaths may be incapable of love and they lack empathy. While some of them have a small group of people to care about, they have a hard time feeling emotions, and more likely they do not have healthy romantic relationships.
Sociopaths feel like entitled to approval; they have a hard time dealing with criticism. If you have a coworker who treats you with disrespect or you are in a relationship with a person who abuses you, talk to someone about it. Do not try to deal with the person alone and ask for help.
Stop contacting the person; avoid the places or situations where you may come across them. It may have a negative impact on your life to continue spending time with the person, so request that they refrain from contacting you. If the person refuses to leave you alone, then consider changing your contact information like the telephone number.
If it came to stalking you, there is no other alternative but to file for a restraining order. Before you confront a sociopath about their behavior, remember they are defensive by nature and potentially violent. Ask your friends and family members for help and set out an intervention to prevent a possible hostility.
Avoid pointing out particular things the person has done wrong or making accusatory statements, instead focus on the bigger picture and let the person know that you are genuinely worried about them and you want to help. Do not talk about how the person has hurt you because sociopaths are likely unresponsive to such statements.
You need to understand that psychopathy and sociopathy are not the same, though they share many characteristics including disregarding social mores and laws, failing to feel guilt or remorse, not acknowledging the rights of others and having a tendency for violent behavior.