Where is the other lady?

Okay, so one of the oddest questions of the past week was asked by an older student who came up after the librarian on the previous shift had left.

"Where's the other lady who was preparing a list for me?"
"A list?"
"Yeah, she was making me a list of sources for my research paper."
(Yeah, right!  And now pull the other leg!)  "What's your research paper about?"
"Like love or marriage or something."
(Ah!  That reference list!)  "Well, I don't know about a list, but I'll be happy to show you how to use the library catalog and databases so you can do your own research."
(BIG pause.)
"No, that's okay."

And she left.  Huh.