Oh, wow, I haven't read this since I wrote it lol What a trip to go over it again! :D But I agree with you on Clois feeling incomplete. They should've had one more conversation. I felt that way about a few episodes - I'm sure they could've found the time by cutting out something useless.

The same goes for Lucy - why would she even kiss Clark? So weird!
Because apparently Tom Welling has to kiss every woman he's not related to on this show? IDK - it was stupid drama and I still feel that way all these years later.

I think I just assumed but you're right it being vague that he might not know. He could definitely have an issue with Lois being with someone like that and in retrospect, that final conversation with Clark didn't really shed any light to whether he actually did.