Really, if you lost, you must be frustrating or whatever, just quit the damn game without GG. Its ok. Why spend 5 mins to whine and insult your opponent because you lost O_O ?. When I lost, if I played like shit and throw the game away, I simple just quit w/o gg.
If I feel I actually played a gg and still lost, I type GG and quit.
OP you should try to do the same.