What happens to Laura's mother when Martin tracks her down after he realizes his wife escaped from him? The film never answers that question. (This could also go under "Plot Holes" below.)
The nurse interrupts him before he can smother her, at which point he leaves. I think the viewer can safely assume she's all right.
When Martin makes advances to Laura after hitting her, the expression on her face makes it clear that this is a routine that they've long since settled into. How many times has this poor woman had to endure pretending that she enjoys make-up sex with a man who's abusing her?
