I enjoyed this little story. I can believe that once Lois figured out the truth for herself, it would irritate her to no end to see all of the slips she otherwise wouldn't have noticed. Whether she realizes it or not, it's her increasing feelings for him that fuel her increasing frustration about his carelessness about his secret; she's becoming protective of Clark because of those feelings.
But then, the story ends. Aaaaaarrrrrgggghhhh!
This story is not complete! There has to be another part waiting in the wings! How does their friendship and partnership evolve into a relationship now that the secret is not in the way? Hopefully real life will allow you a little time to dive back into this universe again.