Two observations about E2:
1) One could watch this episode apart from the series and it would be as poignant as anything I've seen before.
2) Ms. Blaylock had the great challenge of portraying two very different characters within the same episode, and likely did this to empty space each time and still conveying realistic emotions. Try doing that sometime when reading a part aloud. It's difficult enough to act with another person and find a rhythm and timing and connection. To do it all alone is fantastic and artful.