The problem with putting the toys back where they were is that sometimes they don't want to go back. They've found new places to play and they want to stay there.
It's a problem many authors face. A few years ago, I read an article about "plot drift" in Writer magazine (an excellent resource for both beginning and experienced writers) which told of a woman writing a book where the main characters just flatly refused to do what she originally intended they would do. About halfway through, she related, the narrator's life went in a different direction and she ended up with a guy she didn't like very much at the beginning of the story (for good reason, I might add).
The funny thing was - I had already read that book! And I'd noticed that there seemed to be a left turn about halfway through, and I just assumed that the author designed it that way. Uh-uh. Her characters took over and gave her a different set of resolutions. The ending wasn't as tidy as she had originally envisioned, but it worked.
So don't try to force your characters too far in a direction they don't seem to want to follow. If they want to go somewhere else, they might have an idea worth exploring. That doesn't mean that you just write anything that comes into your head, but it does mean that the story you end up with might not be the story you originally wanted to write. It's happening to me, right now, with the tale I'm working on (and which is almost ready for beta). And most of the time, the story is as good or better than the original outline.
Now back to the story itself. I had to focus on who was speaking to make sure I knew who was saying what, but before the end of the chapter each character had settled into his or her own voice, and I figured out what was going on. You've made the two Loises and the two Clarks separate people without changing their identities, and I really liked the counsel each older one gave to his/her younger counterpart.
This was really poignant.
“I used to think Clark Kent was a bit of a wimp,” Lois explained. “He seemed naïve and out of place in the city. But he did stand up to me once, that time I stole his story. You remember. Anyway, then I got here and I thought that I was you. I thought I had a huge case of amnesia and was going to have to figure out how to live this life.” She made a vague gesture toward the refrigerator covered in the detritus of life with kids. “It was pretty overwhelming, and Clark was a really big help. I caught on pretty quick that Clark Kent was anything but a wimp. But after a while it seemed like he was always the one taking the initiative, and I was just sort of following along. I started to worry that being married to him had changed me somehow, made me more passive.
“Then you turned up and I could tell that wasn’t the case. You don’t just follow along where he leads. You’re not afraid to argue with him. And he respects you. I saw what you did just now when Clark wanted to send me back without my memory. You’re married to the strongest man in the world, but he doesn’t dominate you. You stood up to Superman.”
“I stood up to Clark Kent. But I think you understand that already.” Lane gave Lois the gentlest look she knew how. “What you’re asking about is the heart of marriage. In the best marriages, love doesn’t mean losing who you are. It means being encouraged and supported in being the best person you can be. Clark and I love each other with our whole hearts. He’s not perfect, and neither am I. But we don’t have to be. We accept each other, warts and all, and we help each other. I couldn’t thrive in a relationship where I had to hold back, afraid that the other person was going to crack or flee if I showed a little temper now and then. And Clark couldn’t thrive in a relationship where he had to worry about showing who he really is, either. He needs a partner who is as strong as he is. And so do I. We’re stronger together than either of us could be alone. That’s how real love works.”
Lois seemed to be mulling over Lane’s answer. After a moment she said thoughtfully, “Yeah, he said something like that. That it takes a will like mine to put up with his crazy life.”
That remark earned a laugh from Lane. “And vice-versa,” she replied with a knowing smile.
She's telling herself to trust herself and that she can trust her heart to Clark. But now that Clark has seen what might be and has developed a relationship with the older Lois, that might throw a monkey wrench into the gears (or a spanner in the works, depending on what English you speak). And either of them might feel "forced" towards the other, which would create some very nice dramatic tension in your next installment.
Of course, we need to see the next chapter of this one first. So when are you posting?
More like she's met Clark's brother or something, but spiced with the possibility of 'it might be' 
But that's just me trying to make sense of stuff 
