They were friends for many years before they became 'lovers'.
She left her husband and ran away with her 'lover'.
His wife accused him of having a secret 'lover'.
(..) Who are you marrying this time? I don't know. Maybe no one. But you need to lure all the noble houses to the table? Are you a queen or fish bait? I can't bring a lover to Westeros. A king wouldn't think twice about it. So that's what you want? To be my mistress? I'm not proud. I don't care (..)2016 TvShow: Game of Thrones Title: The Winds of Winter Season: 6 Episode 10