The Hook/Charming friendship is pretty much made up, in my opinion. The last thing that Charming said to Emma about Hook before this episode was that he just wanted her to be happy, not that he approved of Hook, but that he wanted Emma to be happy. They are not friends. They had moments in this episode, but that was the first time that they had any real moments between the two of them and then right after we found out Hook murdered Charming’s dad.
Nothing is going to come of this that will matter. It might even end up being just about Emma and Hook and not even really about Charming in the end.