Archie

Archie and Arnold are gay couple. Arnold met Ritchie, gay as well, and they had an affair. Archie considered Ritchie as their true friend. Ritchie is very friendly in front of Archie. Archie found out about this affair. Arnold said that they didn't do anything except hugs and kisses and Archie believed him. Ritchie wanted Arnold so badly. Arnold told Archie that he always wanted to quit Ritchie, however, he is sick. Ritchie had lost his real love and had 2 deaths in the family almost at the same time. He mentioned that he had to undergo 4 months of therapy for depression. Archie found out Richie had been fabricating damaging stories about him. Arnold and Archie compared notes and concluded that Richie is really sick and couldn't imagine how a person like that could mingle with normal people. They also realized that there have been a lot of inconsistencies with life story. What is Ritchie's condition?