your car is driving on a motorway,
you see a familiar car coming from the opposite direction,
you know and like 2 passengers, but don't like other 2,
you can choose:
-drive for a head on collision trying to kill all passengers (or yourself),
-the other option is that you both stop, have a chat and continue together in the same direction after working out a nice holiday plan.
the car with passengers has 2 options as well:
-can kick 2 of the people out of the car,
-the second option is they can keep driving expecting good intentions from the other side
as you can see out of all 4 choices, only one looks like happy ending for both cars and all passengers.
We are not in London going out for tea. This is a war game so your scenario should be more war like. my example
Your out on the field fighting for your life. two friends that where suppose to cover your back under heavy fire came up missing making the fight for your life even harder. Later you see your friends talking and laughing with the (2) enemies near the enemy camp. everyone has a few choices
you can:
1) kill them all and possibly get killed yourself
2) walk up to them and ask them what they are doing
3) kill the 2 enemies leave the other 2 alone
4) ignore all 4 of them and hope they don't see you.
wait wait forgot the other 2 (friends choices)
5) they can kill the two enemies
6) they can have a chat and continue together in the same direction after working out a nice holiday plan.
7) they can tell them all your secrets and how best to defeat you
8) they can agree to spy and when given the chance hand you over to the enemy
9) they can be a spy for your side and you where never informed.
10) they could be paying the enemy off. so, the enemy army will disperse
As you can see out of all 10 choices, none explain why they failed to cover your back when you trusted them the most.