Do you mean should you ask permission to swap seats with him? If that's what you're asking just do it, and if FA says anything he can just say, my lovely wife gave me her seat & she took mine in coach, isn't she the best! MrWeezer & I have never had a problem doing that. Maybe give him both BPs to show the seat assignments as confirmation. And on your way back to coach, whisper to the FA...whatever cocktail he orders, make it a double, he's on his way to see his in-laws.
