Your friend is dating someone whom they shouldn't, you:

• End the relationship at all costs - no one will mess with your bridge game 40 years down the line

• In private try to dissuade your friend from dating the devil - it must end, but there's no need to be underhanded

• Suck it up and let it go - God will smite your enemies for you

• Take a deep breath and look the other way - you can learn to live with your friend's mistake