Change in relationship

How do you feel the relationship after being apart from your friends or dearest ones? Do you still think that the friendship you made when you were in touch is the same that you are having now? Probably not. There will be the creation of vast difference between these two. The changes of time leads to apart the two relationship. Till you are in touch with your friend, the friend is with you. After a gap, they would behave as if they are meeting each other for a first time. The behaviour changes. What's the friendship? Is it the only relation which is made until they are in touch?