It's bad enough that you don't know where your bedroom is. Children can feel torn apart when their parents don't help them with these questions. Unfortunately, some parents do things that make it much worse. It is all too typical for a parent to bad-mouth the ex in front of the children, forgetting that children love and identify with both parents, not just you. Even in the schoolyard, children will not tolerate any insult about their family.
Some parents actually use their children as pawns or weapons in a battle with their ex.
For example, one parent might retaliate against the other by cancelling a visit with the child, or by missing child support payments. Parents sometimes ask their children to spy for them, asking about the other parent's new job or romance. And parents may pressure their children to choose one over the other, by saying bad things about the other parent, or by showing excessive need for the child's favoritism. Your children need both parents, not just one. Just because you and your ex decided to divorce, you are still parents together.