7. When he asked Savannah to move in
After having to cancel vacation plans due to an impending case, Morgan realized that in order to move his relationship with Savannah forward, they would need to find a way to make time for each other. After Derek returned from his case, he brought Savannah to a suburban home he had been remodeling. What he described as their “permanent vacation” turned out to be their new home together.
"Hashtag" (Season 10, Episode 7)