Yeah I never understood the 'guys get mad at other guy for having a girlfriend'. It must be a Japanese thing, because any time one of our friends got a girlfriend all we'd say is "Nice dude".
Well, In indonesian here Same as japan...
The Singles always cursing the couples, espescially on weekly basis at saturday night. Always pray to god... "LET BE RAINING ON THOSE NORMIES... REEEE" or "HOPE THEY BREAK UP.... REEEE"
like that