Ooh, great part, we got some smoochies - yay!!
The slant you have put on L&C in this fic is really, really clever. I know I've said this before, but I keep noticing different aspects to it.
On the face of it, because of L&C and the beauty of the canon 'love triangle for two', I wouldn't expect to like a story where Lois falls for Superman and he reciprocates. Where your fic is so clever is that this is ok, because although he is Superman, you've found a way for Lois to prove she sees more of him than just that. She is now helping him to find a normal alter ego - love it!!
Of course, Caleb Knight (clever name!) is Clark Kent really, but 'Clark Kent' isn't the real Clark Kent, Caleb Knight is!! - that kind of makes sense, I think. Only in the context of this fic!
Now Clark (or Caleb) has been straight with Lois that he has another name/identity, so she can't be mad when she finds out it's Clark Kent now can she?!!

He's trying hard not to lie.
People see what they expect to see. So that explains how we could have spent a couple of hours together this morning, and me still not recognize you when you turned up dressed completely differently tonight.” She smiled at her own epiphany.
And that sums up the basis of L&C. Only part-epiphany Lois! So close yet so far.
“Well, I didn’t think that you normally walked about with your hair plastered to your skull, if that’s what you mean,” she replied.
“Because you were Superman’s first friend.” He reached up with his free hand and gently tucked her hair behind her left ear. “Because you saw right away that he wasn’t me.”
This is the important part, that she gave it enough thought, gave him enough thought, rather than just taking the celebrity/godlike personna at face value.
“I wasn’t kidding; I really don’t need you to tell me your real name yet. But I do need something to call you besides Superman or Hey Handsome.”
“Hmmm….,” she contemplated. “I think we should name you after Clark Kent. He is the master of the secret identity, you know.”
“You’re going to call me Clark?” he squeaked.
“No, that could get confusing. What if we wanted to go somewhere public? I couldn’t go around introducing you to my friends as Clark Kent. You’d never hear the end of it.”

Not Clark Kent, heaven forbid!! They'd never believe it!
Charlie had fallen in with some gun-runners in the Congo and gotten to know some very nasty people. In the process, he’d learned a few things about Metropolis’s favorite son, but he’d been forced out before he had anything tangible. One of these days, though…
Ooh, so that's where he got the 'heads up' about Lex before he came to town. He needs to let on to Lois, but I guess he can't at the moment.
“Okay, then. And, since you don’t want to be the King, you can by my Knight in shining armor. Or spandex, as the case may be.”
Hee, hee! 'Superman, the night in shining spandex' - could catch on!
“Oh? And how do you propose to do that?” Clar..Caleb asked, his smile mirroring hers.
That's the only trouble, if he gets confused and forgets his name!!
After that, there was no need for names, or other words for that matter, for a very long time.
Looking forward to the next part of Lois & Caleb/Clark: the New Adventures of Superman!
Em