Lois has a secret identity – she’s Superman’s wife. Married to Clark but supports and comforts the hero and gives him a safe place to go. She’s a large part of the reason he doesn’t burn out.
Problem – Lois starts to burn out. Too many nights alone, too many bad excuses for Clark’s absences both at work and with their friends, too much verbal dancing around the truth with her family, too much pressure on her to parent the kids by herself, it wears on her and she snaps.
Interesting, no? Anyone want to take a run at this one? I don't have the time to develop the idea properly.