tomandshell
Blue Flame of the West/Mod
As soon as Lois realized she was pregnant, she knew it was Superman's baby. Now what kind of danger would you and your child be in if it was common knowledge who the baby's father was? She hooked up with Richard as soon as possible so it would look like the baby was his. Being the good guy that he is, he agreed to raise the child with Lois. But his "before we met" line shows that he knew the baby wasn't his, and likely knew the baby was Superman's. You can tell what is going on in his mind when he drops Lois and the kid off at the hospital at the end. He knew where they needed to be, but he also knew where they would be that night, and the next day, and the day after that. He is the stable and dependable father and husband that Superman could never be. He gives Lois and the kid the opportunity to appropriately honor their feelings for Superman while confident that they will be going home with him in the end.