This is my favorite passage from the Quran.

It was narrated that ‘Abd-Allah ibn ‘Abbas (may Allah be pleased with him) said: The Messenger of Allah (peace and blessings of Allah be upon him) said: “I was shown Hell and I have never seen anything more terrifying than it. And I saw that the majority of its people are women.” They said, “Why, O Messenger of Allah?” He said, “Because of their ingratitude (kufr).” It was said, “Are they ungrateful to Allah?” He said, “They are ungrateful to their companions (husbands) and ungrateful for good treatment. If you are kind to one of them for a lifetime then she sees one (undesirable) thing in you, she will say, ‘I have never had anything good from you.’” (Narrated by al-Bukhari, 1052)