In the second panel, she’s probably thinking, “You were right all along, dear. Like you said, we should’ve just gotten a dog—preferably a dachshund—and then we could go out to dinner and a movie all the time”.
Another possible reason is that he seems to be the only one at his school who ever receives consequences for acting out. Other kids at that school act out, too. Besides Moe, there are also the kids who have signed up to play baseball during recess in a later strip. Calvin signs up, as well, in the hopes that Moe will stop teasing him. The other kids insult and threaten him when he accidentally gets a member of their own team out. There’s also Mr. Lockjaw, the coach, who doesn’t even explain the rules of baseball to Calvin.
It’s too bad that this is the last we’ll see of her. She should’ve been featured more often in the strip (for instance, there should’ve been a story in which Garfield introduces his Mom to Arlene).
Perhaps he named the four others Annette, Talus, Taylor, and Tison. The Big Book of Animal Records (©1984) by Annette Tison and Talus Taylor features fascinating information about, for instance, the glowing click, or cucuyo , beetle of South America.