The Time-Traveler's Equation

Summary

I can talk to my husband from ten years ago.

He asked me: "Did I marry Lily Summers?"

I thought for a moment, then wrote in the diary: "No."

The pen on the other side paused for a long time. "Did I achieve my dream?"

"Pretty much. Your team just won a top-tier aerospace award for propulsion systems."

"So... am I happy?"

I looked at Ethan Vance, asleep on the bed after pulling a forty-hour shift at the lab. I wrote: "You're doing okay. You have a career you love, and someone who loves you deeply."

You just never really noticed her.