Shrinking Season 3, episode 1s emotional ending, explained

Shrinking is back, and Season 3 is already packing just as much of an emotional punch as its predecessors.

In a moving hour-long episode that builds to Paul (Harrison Ford) marrying Julie (Wendie Malick), there's one scene right at the end that hits harder than any of the others. So what happens, and what exactly does it mean?

SEE ALSO: 'Shrinking' Season 3 review: My heart can't take it

What happens at the end of Shrinking Season 3, episode 1?