Well, he better. Because honestly, if he didn't, Kishimoto'd seriously be an ass. :/ I mean, hello? Being told that you're loved for the first time in your life probably is pretty earth-shattering. Even if he doesn't return her feelings, it'd be ridiculous not to think about her confession.
Really now, I think the only ones who have any sort of logic left within them are Karui and Sai. >_>; Karui can call Naruto out on his bullshit and Sai can see that both Sasuke and Sakura are crappy friends if they cause Naruto so much pain. :c Everyone else just goes along with it.
Yeah, Sasuke being obsessed with revenge is getting kinda old. :/