A passionate and impulsive woman.

[Trust No One]

Gripe, I think the issue was that Sara Gilbert didn't think much of the material they gave her to work with. Essentially, what we've got now is a slightly repurposed version, because you know how Chuck Lorre hates to let go of an idea. Leslie didn't quite fit with the show pattern, because she fitted a life on her terms around her work, she'd never put her career on the backburner for a man, which is otherwise the message conveyed in script - however much you might achieve professionally, it doesn't mean squat compared to sex. The show epically failed to cope with one lone intellectual pursuing a cerebral goal, they'd have wrecked her in short order.

TPTB really wasted the Leslie character. I can understand if Sara was upset with the material. Look how TPTB wasted the Alex character. She was just used as someone else to fall for James Bond, I mean Leonard.