What are some examples of conflict between Nick and Gatsby?

A first few conflicts with Gatsby and Nick occur during
chapters 3-4. Nick is learning about Gatbsy's character and does so quite a bit through
rumors. As chapter 4 comes around, Gatsby tries to clear up all the rumors on a road
trip to New York. Nick actually grows quite annoyed with all the insinuation about a
certain "matter" he wanted Nick to help him attend to. Once they get to where they were
going, Nick meets a work partner of Gatsby's and feels like he is led to be involved in
some dirty deals, but wants no part of it. Nick is losing faith in
Gatsby.

In chapter 5, when Gatsby arranged to meet with
Daisy at Nick's house, Nick is very welcoming, but notices that Gatsby is
extremely nervous. So, when the two men are in the kitchen, Nick
refuses to go back out into the room where Daisy is and he just has to deal with
it.

In chapter 8, Nick's conflict with Gatsby has to do
with wanting Gatsby to understand the reality of his new state of relationship with
Daisy. Gatsby thinks everything will just blow over in the morning and everything
between he and Daisy should be fine. But the fact of the matter is that he and Daisy
just committed murder together. Nick struggles within himself as to how to tell this to
Gatsby. Nick comes to the realization that Gatsby just won't get it, so instead he
recommends that Gatsby get out of town for awhile. This is about 2-3 pages into the text
of chapter 8 depending on your book.