Nasty Cathy was a big step down for Lewis
Seriously, wtf is wrong with the writers? Do they think black guys have no taste at all? I'm sorry but after dating Alice (who is hot) and Marti (who is also hot), I have a very hard time believing that Lewis would be "slumming" (as Alice put it) with Nasty Cathy.
I understand that Alice is a bitch and Marti was a tramp slut who cheated on him, so a change of direction would have been due but come on! They could have introduced a cute distraction or one of the other cheerleaders who have minor roles. Nasty Cathy's not in his league. I don't believe he would have dated her.