Second thoughts may lead to third thoughts.

Shelly has decided that now is the time for the truth.  (Well, most of it anyway.  I doubt that she'll reveal her true identity.  Baby steps, Shelly.  Baby steps.)  Meanwhile, back at the invisible office, where the poor invisible man continues to be ignored, Peter wants to see Shelly, who I was under the impression was still at home.  (I guess somebody really does live at the office.)  From the exclamation point at the end of her sentence, you can tell that Cherry is less than impressed that Shelly is talking to Mark and that if she doesn't get off of that darn phone soon, there's going to be trouble.  (Actually, there seem to be a lot of exclamation points being thrown around today.  The only one who isn't doing it is the invisible man, but I guess no one would pay attention to him even if he did.)