Raluca said:
How can anybody force a child to live with the parent he doesn't want to live with?
How can anyone force a child to go to school if he doesn't want to?
How can anyone force a child to eat vegetables if he doesn't want to?
How can anyone force a child to brush his teeth if he doesn't want to?
How can anyone force a child to go to Church if he doesn't want to?
and so on and so forth.
It's called being a PARENT.
You have yet to provide a reason why the court should change custody, apart from it's what the kid wants.