Before revision: Pathological jealousy, also known as morbid jealousy, Othello syndrome, or delusional jealousy, is a psychological disorder in which a person is preoccupied with the thought that their spouse or sexual partner is being unfaithful without having any real proof, along with socially unacceptable or abnormal behaviour related to these thoughts.
After revision: Pathological jealousy, also known as morbid jealousy, Othello syndrome, or delusional jealousy, is a psychological disorder in which a person is preoccupied with the thought that their spouse or romanticor legitimate partner is being unfaithful without having any real proof, along with socially unacceptable or abnormal behaviour related to these thoughts.