Noelle,
When I read this, I just assumed that Lois had not seen Clark at the table with his parents after his exposure to Kryptonite. Since this story has Lois seeing things she did not see in the original story, it seemed reasonable to assume the opposite was also true. Especially since in Lois' musings, she does not stop to ponder the fact that Superman is sick. Surely if she had seen Clark sick, her curiosity would have kicked into high gear - how can Superman be sick?
Laura does bring up a good point about the time line, though. I went back and re-read this, and you have Lois seeing Clark fly in the evening, while the stars are out, and yet the next morning at breakfast, Clark is without powers. So when was he exposed? You could clear this up by adding a line or two explaining. For example, if he wonders about the green rock, "which his father had shown him after he fixed the roof on the barn". (Was he fixing the roof on the barn when Lois saw him? Whatever.) Well, I'm not a writer, so the line I wrote stinks anyway, but you get the idea! Or, perhaps you *do* explain this in Part 2, and we just haven't read it yet.
Unless, of course, Lois *had* seen him at the table with his parents, in which case I would wonder, too, at her lack of sympathy for Clark!
- Vicki