SITUATION
You are friends with two individuals who start goin out with each other. Then unfortunately they break up and on or both wants you to unfriend them.
MY RESPONSE
I was friends before you two broke up and I'm not going to break up just because two of my friends have a issue with each other.
UNLESS
Their choice/issues/actions has effected me negatively
BECAUSE
The choices my friends make have nothing to do with me UNLESS{Read the unless part}