Virginia is right!!!
I just checked the script for WHALTTA...this is from when Superman takes Lois into "space."
LOIS (CONT'D)
It's so beautiful.
SUPERMAN
I used to come up here a lot by myself and just... drift. Not part of the stars, not part of the Earth. Not knowing where I fit in... till I met you.
LOIS
Oh, Clark...
SUPERMAN
I'll wait for you, Lois. I'll wait as long as you need me to.
LOIS
I want you to know...I love you. (her hand on his face)
You're not alone anymore.