Conclusion:
a) You turn to the two groups and ask both of them what they want to do next other than eat. They both decide that they want to go shopping, and you tell both of them about each other's decisions and how you feel about their fighting and all the tension that's floating about the group's heads. After half an hour of persuading, they finally realize that their actions and stubbornness has caused a perfectly good day off to become a source of stress and bad feelings for everyone, and begrudgingly make up. The problem is solved and a compromise is reached. You all head to Starbucks to grab some food, and then happily head off towards the shops, your conflict resolved and your hang out salvaged.
b) You decide that you can't deal with all the tension here. You turn to each group and talk to them about how stressed and upset everyone is, trying to get them to realize how you could see this fight was ruining their day off. They both dismiss you, and the conflict remains unsolved. Group A talk amongst themselves and decide to ultimately ditch group B in favor of eating at the sushi place. The last straw drops when they invite you to come along, but when you look back at group B, you can tell just how disappointed and angry they will be at you if you leave them. You decide that you can't deal with all the tension heavy in the air between the two groups, and you tell them both that you're leaving to avoid all the conflict between them. You plan to call both parties later to try to talk some sense into them tonight. Someone hands you your bag, and you walk off alone with a heavy heart toward the shops, leaving the tension behind you.
8