I moved over an hour away from my partner after living together for a year. To be honest, it is not an easy acclimation. But regardless it is an acclimation. It can definitely work, but both partners have to be open to the idea of the relationship morphing. You will both be happier if you create lives in your own settings and balance a relationship. That means that your lives should not revolve around when you both will see each other as it becomes meddlesome and you lose valuable time that you need away from that person. Just remember to keep a healthy balance and you will be fine.