[dedward]

argh, option b. because i am part of this equation too.

because its the one I can live with better. the surviving couple may disrespect me, never see me again, hateme, but are likely to be happier in the long run, and the other, dead couple will not me around to care that i ignored their wishes. and I will live knowing i kept one couple i care about together instead of destroying two. in short, i would take the selfish approach, because i have to live with myself.

given more context or a different situation with a similar concept, or more coffee, i may have a different answer.