I'm not a stranger to this, I must say what really helped was constant communication. Skype helps a great deal coz that way, even though miles apart, you feel connected to a person for a short time when you get to see their face. In addition, this requires more commitment and realistic timelines, one person has to sacrifice and agree to move to the other if there's any hope of the relationship maturing into something blissful in the near future. Otherwise, it can be really difficult and a waste of time.