After you go through a separation or a divorce, the idea of having your child taken even further away from you can be difficult. Sometimes, one parent needs to move away, though, and it is possible to negotiate a way to stay in touch so the parent who isn't the custodial parent can continue to have a good relationship with his or her child.
Generally speaking, it's normal for a case involving moving children to end up in court. No one wants to let their children go far away from them, even if it means an ex-spouse getting a better job or a more stable lifestyle. The important thing to know is that as a parent, you have the right to argue against or for taking your child to a new location, but it's up to the court to decide if this is in your child's best interest.