Which personality disorders are described here?
Doug is a college student who has no close friends. He comes to class every day and sits in a corner and is sometimes seen having lunch alone on the park bench. Most students find him difficult to engage and complain about his lack of involvement in class activities but he appears indifferent to what others say. He has never had a girlfriend, and expresses no desire to have sex. He is meeting with a therapist only because his family tricked him into going.