Of course there is another closely related development suggested here. What if Lois answers Clark's question in a way that does not reveal she knows that he is Superman.
Would he really have the corage to tell her if she said yes?
I can picture it know. He puts off telling her because he wants to bask in the happiness of her being engaged to him. He is going to tell her, just not yet.
So at the Church's party Lois is under the table and whispers "Clark, I know you can hear me, becuase I know you are Superman. I was hoping you would tell me, but no time now, I need your help undoing this bomb."
