[PastPrime]

Originally Posted by Solictum

Ok I have another question, what was Nagato's reasoning behind her actions in the 4th book? I got a little confused around that point.

What I got out of it was...

Spoiler for the fourth book:

Yuki gained emotions, and thus decided to change the world (with Haruhi's powers) to one in which Kyon would like more. Am I right in thinking this? Thanks in advance

I think that it was more

Spoiler:

A world in which she could have Kyon. And, without Haruhi around she would have as good a chance as Mikuru of landing him. He realized in "Charmed at First Sight LOVER" that he was bothered as much by the possibility of Yuki having a boyfriend as he was for Mikuru.