I think the 'long distance relationships are hard' thing is just an old fashioned throw back from when people used to communicate using telegrams and shit. In this day and age, you can practically converse directly with someone 24 hours a day if you wanted to.
I'm not saying Skype etc is the same as being with someone, but think about how people used to have to wait 2 months for a reply to a letter, and then stop being such a pussy.