I'm tired of kakashi acting lame over what happened with rin. If rin was a spy for the hidden mist village, then he had a reason to kill her, and he shouldn't feel guilty. If she wasn't a spy, and he totally murdered her for a lame reason, then he should get over his stupid feelings, and face the situation: obito has turned against the leaf village and has murdered thousands of kakashi's friends, nevermind the fact that obito murdered the fourth hokage, and his actions pretty much created this current world war. Obito is CLEARLY a crazed evil mass murderer, and he needs to be stopped before he destroys the world.
I feel much better having said that.