Well, I will ignore practically everything said so far since I think it is an interesting question. Thinking on it and compairing what Lois brings it comes down to just a couple of things to me. She's a full partner to him as she can be right beside him in all aspects of his life and she has a specific skill set he doesn't possess so he can learn from her. As a person, I think they both are pretty similar in their views of right and wrong but she's more hardlined than he strikes me. Which I can never decide if that's a good trait on either's part since at times it seems he's too soft and she's too hard. Unfortunately, I don't see a long term relationship.