Mom or dad or how about both? But divorce is hard on everyone

She had been a part of both of their lives. They thought they were the ones that set the trap but in order to do that she had to set it first. As their big sister and old enough to decide she wanted to go back and forth and know both of her sisters even though they don't know each other until they get to camp that summer. She put the idea into both our parents heads to send them to camp got her sisters all excited to go and she's a camp counselor. It was only a matter of time that they were one big happy family once and for all. That they'd be together at last.