Actually the biggest secret was that Lester was fucking Calvin.
Agreed, r3, Mary was crabby and annoying. I guess crabby had worked for Marla all those years as a supporting character on "The Jeffersons" (that was the essence of her character, right? I don't think I've ever seen a full episode). But as the lead protagonist of a show, it wasn't engaging. She shouldn't have been surprised that when they hired a vivacious, hilarious actress like Jackee that she (Marla) would be upstaged. But she was bitter about it, right?