Well 90% of the times I stop playing is because I am RQing. Either because there is too much ranged on the server, my team never wins, I hit people and never kill them, or I consistently fail everything I do ingame despite no evidence of doing bad. Happens some days, it's quite an horrible feeling when you do everything right and exactly the same as the day before yet still miss nearly all attacks, blocks, dodges...
Then I go to the duel server and it feels like heaven.