I got some feedback from my writing group on one of my scenes that there was too much dialog without any breaks for summarized dialog or emotional expressions. I did some research – in A Farwell to Arms, Hemingway has half the book in dialog with almost no breaks. But that’s Hemingway.
I wrote another scene with breaks for emotional observation and my editor thought that I should drop the observations. We discussed the issue and finally concluded that the height of the emotions in the dialog should determine whether one takes the reader away from the dialog or tries to summarize in order to break things up.