I feel really bad for Sasuke. Traveling to the village that he blames for the oppression, forced coup, and finally massacre with a horrible sociopath as his guide, meanwhile he feels chakra of someone who seriously cares about him and he just shuts himself out. He probably thinks he is doing Itachi a favor by embracing the hate he was taught to use, or he is so bitter about everything he went through he is too angry to let go of the hate. He is a pretty unpredictable character and you can't help but sympathize with the guy because no matter what he goes through, he doesn't give up making ends meet.
Don't you think he wants to learn the right thing so he can make the choice if he wants to do the right thing?