[2] Sarah and Edward are on a vacation in Mexico, and are visiting uninteresting tourist locations.
Sarah describes Edward's passions (such as birdwatching) as "compulsions" which are "awkward and boyish".
Sarah's disdain for Edward seems to stem from the implicit blame she ascribes to him for her baby's death.
Edward sees this, thinking Sarah is about to jump in the well but is hesitant to approach her.
Edward sees that it was just the toy being thrown in, and attempts to comfort Sarah as she breaks down in tears.