Continuity mistake: The rooms Amanda and Billy fool around in are different between the scenes. Earlier they are at Amanda's apartment, with the bed across from a window. Later when she brings Billy breakfast the next morning, the bed is different and there's a wall where the window was previously.
Melrose Place (1992)
1 mistake in Bye Bye Billy
Starring: Heather Locklear, Josie Bissett, Thomas Calabro, Andrew Shue
Lexi Sterling Cooper: Get out of my way, moron.
Dr. Michael Mancini: It's "Doctor Moron" for you.