This is a very good point and one she can't back pedal from. She did lie about where she was living and Art knew it was a lie.
Apparently, this was a lie Art approved. Speaking of her "you weren't here for all the phone conversations I had with Art" I can only imagine how that call went.
HW: "I moved here and I didn't wan't to lie about it."
Art: "Heh, heh, well, you know, keep em' guessing."