Allan (Grey's Anatomy)

Allan is a resident of Roseridge Home for Extended Care who developed a relationship with Adele Webber.

History
Allan and Adele began a relationship while they were both in a residential home after being diagnosed with Alzheimer's Disease. Allan's case was stated to be even more advanced than Adele's.

Richard was upset at learned that Adele and Allan were having sex and demanded that Adele be moved to a different room, away from Allan. However, Adele became confused and sad and asked where Allan was, leading Richard to conclude that it was better for her to be allowed to enjoy her relationship with Allan.

Romantic
While they were both residents at Roseridge Home for Extended Care, he developed a romantic and sexual relationship with Adele Webber.