The chemistry between the actors, the pulling of the thread regarding the story that leads to this encounter.
What I didn't like
More of the therapists combined martial arts stances. Probably not good for the story but they were entertaining.
My overall impression
A cool take on the idea of a couple fated to remake their love story over and over again throughout generations. What the audience knows and can believe is nicely handled, when a play can make give you a story and then give it to you again with a new lens it can be pretty satisfying and this does that well. The two actors have great timing and physicality while still essentially having an admittedly awkward conversation.