a look shared by two people each wishing that the other will offer something that they both desire but are unwilling to suggest or offer

So it turns out there is an actual word that encompasses the look Daryl and Beth gave each other in “Alone”

mamihlapinatapai: “a look shared by two people, each wishing that the other will offer something that they both desire but are unwilling to suggest or offer themselves.” A slightly different interpretation of the meaning also exists: “It is that look across the table when two people are sharing an unspoken but private moment. When each knows the other understands and is in agreement with what is being expressed. An expressive and meaningful silence.