Eve

• Did They or Didn't They?: Lucifer's comments in the season one finale seem to imply that he not only married Lilith, he may have also seduced Eve at some point as well. Though it's not clear if he's merely mocking the Original Man or not (and this is assuming he wasn't referring to offering Eve the Forbidden Fruit). Given that Adam is a Psychopathic Manchild and Politically Incorrect Villain, and has been since the dawn of creation, can you really blame her if she did?
• Second Love: Was this to Adam after Lilith ditched him for being controlling.
• Slasher Smile: In Charlie's story, after Eve takes the Fruit of Knowledge she's shown sporting a Psychotic Smirk that grows into a terrifying red-tinted smile—indicating that being given free will corrupted her.
• Small Role, Big Impact: Her current role is in a flashback in a story Charlie told, however her eating the fruit allowed the forces of Darkness to infect Earth and cause Lucifer's banishment to Hell.
• Tempting Apple: She was given THE forbidden fruit which is an apple in this series.
• Unwitting Instigator of Doom: As stated eating the apple caused the evil to find its way to Earth, corrupting the angels' creation, causing Lucifer and Lilith to fall, and Hell to be born.
• What Happened to the Mouse?: Her fate after eating the forbidden fruit is unknown and while we do know that her husband Adam would go on to become an angel, she isn’t mentioned nor referenced to beyond the story Charlie tells in the beginning. Lucifer implies that he seduced her as well to Adam in the first season finale to mock him, though it's unclear if that actually happened or not.