Shelly's seperated. I believe she says this in the bottle episode when Chang forces her to admit they had sex during the Halloween fiasco. She and her husband (Malcom Jamal Warner...I forgot his character's name) had recently reconciled at that point. She was beaming at the start of that episode when she revealed she was pregnant. Shelly was thinking it was her ex's baby.
Are we referring to the Dragonflyer pilot episode now? Wow Timothy if so then yeah that was a very small insignificant cameo. Nothing to get hysterical about. He was shown for like five seconds lol.