I haven't watched this episode in a while, but I have always wondered if Lois and Clark had a wedding reception?

I assume they would have?

Anyway, I just think Clark should have figured out something was off with "Lois" much sooner if they indeed had a wedding reception and he spent that time with her.

How did the clone fake her way through the reception? First dance? Toasts? Speeches? Cutting the cake? Talking to all the guests, her parents, Clark's parents? And no one be, hmm Lois is acting a little strange.

Maybe Lex trained her on reception etiquette.

I guess though, if your new bride is acting a little strange you don't automatically think clone...but still. Clark should have wised up earlier imho.