Thanks for the comments, Framework4 and robinson!
Also all the little Superman visits Lois trips in the canon 'Verse left Clark with warmer deeper feelings for Lois. Surely this affected his behavior as Clark as around Lois.
Framework4 - This is a very interesting thought, and one I had not considered, although I probably should have. In trying to explore how this change changes the relationships between the three characters, I did not really think about this aspect of Clark acting differently around Lois because he had not interacted with her as Superman.
I have been thinking that in some ways, they would be closer as Clark would not be trying to keep a big secret from her. And I still think that's true, but yours is definitely an argument for why things could go the other way.
robinson - You hit on precisely what I'm trying to explore here - how the story changes when there are three characters rather than two. Thanks so much for leaving feedback!