The Walking Dead #4 (Jan. 2004):
“Days Gone Bye, Part 4”
by Robert Kirkman, Tony Moore

BELOW: It is revealed that Lori committed adultery with Shane, something she regrets and refuses to continue, despite Shane's continued covetous desire for her: When Lori's wife Rick is out of camp, searching for guns in Atlanta, Shane approaches Lori with the intention of seducing her. She refuses.

Shane: Come back to camp. It's too cold to be out in this rain. C'mon... Staying out here isn't going to make him come back any sooner. I'll keep you company.

Lori: Shane-- Don't. You've got to stop.. Rick is back now... He's alive... And he's my husband. You've got to stop this.

Shane: But what about that night when we-- On the road down here?

Lori: That night-- ... That night was a mistake.

Source: The Walking Dead #4 (Jan. 2004): "Days Gone Bye, Part 4", pg. 21-22. Written by Robert Kirkman. Art by Tony Moore. See also: thou shalt not covet thy neighbor's wife; adultery; Lori Grimes; Shane Walsh