Most Helpful Guys
Eesh, cut some slack, if it is a one time thing so he can enjoy one 'last' moment with his mates let him. I'm sure Ur relationship can last one missed Skype date. He also tried a compromise which is much more than most guys give their ladies.
Most Helpful Girl
It sucks but long distance often does. Best not to do long distance then. What he says makes sense and you banging on about not being happy about it will mean he values his friends more and more and this less and less. He needs fun things now not commitments, seriousnessness, judgments, fault finding etc.