Had a friend who was dumb enough to marry a single mom. Before the marriage they had sex all the time, after getting married she always had a headache or her "fibromyalgia" would act up. She just used him as a taxi service, babysitter, cook and nanny. When he started to fight back and refuse to do everything she immediately filed for divorce.

Don't mistake sex for love, because a woman will use you like a piece of furniture.

To quote Blade: "When you understand the nature of a thing, you know what it's capable of."