You're expected to put extra effort into long distance relationships.
Mike, who has a girlfriend, is going to Honduras for a year but intends to stay with his girlfriend.
Mike wants to call his girlfriend.
Mike calls his girlfriend every night and talks with her about deep, personal issues.
Mike calls his girlfriend once a week and talks with her for an hour to catch up on the week's events.
Mike's girlfriend feels like a part of Mike's life and maintains a connection with him while he's away.
Mike's girlfriend feels unsatisfied and grows more and more distant from Mike, eventually separating from him.