Now that's a good point. I suppose you could blame the SAT (what am I saying? of course we could blame it ), although I thought Alexis didn't have quite the motivation she needed for that scene. I think the scene before with Alexis and Fallon in the library, that scene should have been about Fallon disowning Alexis as her mother, and announcing, "KRYSTLE is my mother now! It'll be nice to have a mother who's a decent woman." Alexis then could have gone out and accused Krystle of stealing her daughter from her - which of course would be rich, given how Alexis killed Krystle's baby. But I think that would lay better groundwork for why Alexis would make such a callous comment about Krystle's miscarriage.