After defeating the Mage and the Humdrum, Simon feels like he has no purpose. He spends most of his time on the sofa watching movies and drinking cider and trying very hard to not think about how he's lost his magic, Ebb, or his father figure. And he certainly tries not to think about how he's hurting Baz. Baz feels like there's nothing he can do but wait for Simon to realize that killing the Mage wasn't the end of his story: it was only the beginning. He wants to stay by Simon's side, no matter what, but it's proving to be exceedingly difficult when Simon stops communicating with him all together.