There is a reason for the distance. Maybe it's their career (or it's yours). Perhaps they have a family member they need to stay close to, or their house needs to sell... or their child (and the other parent) are in their location. Whatever the reason: Be supportive of them and their situation. If you are resentful of their situation (or yours), then you shouldn't be in a long distance relationship with them. In essence, be supportive of what's happening for them, or they might find someone who will be.