Yeah it is frustrating, i get frustrated all the time when i lose... Its so frustrating..
I only play people above 20+ level so its more frustrating because im only able to win like 40-50% of my games.. And the rest 40% i get outplayed and the rest 10% are just ****ing quitters who just quit the game if i score within the first 15 minutes.. I do send them a load of abuse then !!