I like how Lois is making herself sick, and she assumes that it's from the cancer. She really seems disgusted by her own behavior, but she's in denial about it.
I can see Clark going in to that cat house coming back to bite him later, but maybe he's ok if no one knows he was there. I dunno. I just got a bad vibe from the whole thing. Of course Clark's presence is perfectly innocent and legitimate, but it might not look that way from an outside point of view.
I'm enjoying the story, and I'm wondering how you're going to manage to end it without Lois serving jail time for shooting people.