I'm planning to leave my friends to deal with a bad situation alone.
Why are you going to leave your friends to deal with it alone?
I'm going on vacation and they can figure it out.
You are behaving in a selfish way by abandoning your friends. You should be available to help your friends or they will not be there for you if you need them.
You're wrong. I'm their best friend and I can do what I want.
Friends should be there to help each other out. They aren't likely to trust you in the future if you ditch them now. Maybe you can help before you leave.