Ooops. It's Mike rushing off to preschool.
Panel 1: Elly tells Mike that he seems to be well enough to go to preschool today. He yells "YAAAYYY" because he can say 'Hi' to Dee before she leaves 'forever'.
Panel 2: AS he puts his coat on, Elly cheerfully gives him some advice on how to keep from spreading his illness to his fellow hold-backs.
Panel 3: She then warns him against over-exertion and reminds him to stay warm. He says "ThebusiscomingloveyouBUHBYE".
Panel 4: As he happily runs to the bus stop, Elly looks on in confusion.
Summary: He's excited because he thinks he'll be able to say good-bye to Dee. Too bad that she'll be gone when he gets there.