That's Honey, I Spun the Baby by James and Nan

Quote
Clark wished he could get lost in his Superman activities - the
way he normally did. But he also realized that it was dangerous
for him to answer any cries for help in his current state. He
knew he wasn't in control at the moment. The stress of the past
few weeks - ever since Lois had accepted Luthor's proposal -
combined with the lack of sleep he'd had as he'd searched for
the evidence against Luthor had definitely taken its toll on
him. And now, tonight, having to admit defeat, had pushed him
frighteningly close to the edge of sanity. His usual solution
for these times was a trip to see Lois, but now... Lois was the
problem.

Lois was marrying Lex Luthor at eleven o'clock tomorrow morning
and there was nothing Clark could do to stop it. Actually, that
wasn't exactly true. There was one thing he could do. He could
go to her as Superman. The problem was that there was no future
in that. But at this point, he was almost beyond caring. It
would be hard enough living without Lois if he knew she would
be happy with someone else. But Clark knew Luthor. He knew it
was only a matter of time before Luthor hurt Lois. How could he
stand by and allow that to happen?

It was past midnight before Clark made a decision. He could no
longer tell if it was the right thing to do, but he couldn't
seem to do otherwise. He wasn't exactly sure what he was going
to say, and even less sure that this would work, but if he
didn't at least try, how could he live with himself?

I think, therefore, I get bananas.

When in doubt, think about time travel conundrums. You'll confuse yourself so you can forget what you were in doubt about.

What's the difference between ignorance, apathy, and ambivalence?
I don't know and I don't care one way or the other.