What? No, Rhoda couldn't possibly be getting shorter. That's just clever adjusting of the focal length and zoom on the camera to create the illusion that she's shorter!
Okay, so maybe I don't have a lot to say about this comic that doesn't wind up being spoiler-ish, so I'm talking about focal lengths and cameras, and Rhoda is totally getting shorter. She's still taller than she started, for anyone wondering, but yeah, something's up.
Somthing involving focal length! (Nope)