Well, Naruto and Sasuke lived similar lives so they understand each other more, Sasuke is Naruto's first real friend, the way his character is written it makes more sense for him to go to these lengths to save his first friend, I agree it's not great either though. With Sakura there's no real explanation of why she loved Sasuke so much and why she still does.So how does that makes naruto justified and sakura don't.If a freind tries to kill u and ur freinds u will chase after him.
Remove ur 1st post plz