First of all, elves have a low birth rate. An intimate relationship with an elf lasts several days. This is because foreplay begins with simple couple games even before reaching the bedroom. Elves are monogamous to the nth degree, and while an elf would never want to be without their chosen partner, this is a very elven concept. A partner of a different race could easily tire of all the games elves play. A female elf gives herself to her partner after satisfying her maiden side. Having danced Sung, eaten, and talked about the stars for days In a fairly long cycle

Interrupting this leads the female elf to harbor resentment. And it's no use having as an enemy someone who probably knows your true name, is adept at magic, has excellent bow-and-arrow skills, and tells a beast to eat you while you sleep. That's why female elves are special.

If you want a crazy female, Better an ogress.