“darling” and other 'terms of affection' [=words and names that friends and lovers say to each other to show their affection]
She's been 'the object of his affections' since they were children. [=he has loved her since they were children]
Their 'affection' for each other is obvious. = Their mutual 'affection' is obvious.
(..) - And did they ever harm you? Never. Dragons are intelligent. More intelligent than men according to some maesters. They have affection for their friends and fury for their enemies. - I am their friend. - Do they know that? They will. It's time they had their supper. (..)2016 TvShow: Game of Thrones Title: Home Season: 6 Episode 2