Both the actors in it are very believable...even though they run the gamut of emotions in such a short time frame, the acting is not overdone at all, instead they are able to deliver their performance with the subtlety and realism that makes you empathize and relate to each of their emotions....whether confusion, joy, sorrow, whatever. Very real, very relatable, easy to identify with--and one of them you'll probably recognize from a quite different role. :-)
If you get the chance to see this short, make sure you do...it's worth it. Beautiful, tangible, and intriguing...I'm looking forward to other films by this director for sure.