A little in love

A couple walk down the street holding hands when they run into some construction where the sidewalk is blocked off.  Reluctantly, they break hands and split up - he stays on the street near the construction and encourages her to hurry over to the sidewalk on the other side.  They continue walking down the street, on either side of it now, watching each other, waving to each other a farewell, as they part ways for their respective destinations.  He pauses on the corner and waves at her again.  She turns her corner but turns back around to wave yet another goodbye.  He is forced to wait at a light and watches her retreating back, waving again, although she does not see it.  When he crosses the street, she pauses to watch him continue on his journey, waving again.