"Oh no," says Kara, before you can get a word in, "I'm not his ex-fiancée, I'm just staying at his house this week, kind of like a baby sitter!"
The boss asks for an explanation while you frantically try to tell Kara not to say anything.
But Kara ignores you and says: "His ex-fiancée is away on a photo shoot all week, and she asked me to stay with him to make sure that he's..." she pauses and looks at you for a moment, then continues: "well that he's OK..."