So...third individual supplies something that changes the trajectory of Hoppers story?
If hopper does not meet third individual does she just run some more and hop around? But third dude give her something else to try for?
If the story, but for this meeting is He chases, she jumps away, he chases, she jumps away, and repeat, then the meeting is where things change. A quick action sequence and then everything is different. Cant say as I know, but I think I would want to end the first part right after third dude says something that changes her way of looking at it. That makes her the POV to me.
He will also change Javert's story.
Yes, Hopper will hop and Javert will chase. Third dude will make her realize that she's turned into a total Rick (see what I did there). And that will spark a change, but that will take some time. And that change in Hopper won't be immediate, but will happen near the end of it all.