One of the world's favorite narrative arcs is that of the love triangle. Everyone loves a story of two competing lovers - look at the popularity of The Vampire Diaries, which is basically just Twilight with a lot more death and sex (all the good things) and one hell of a love triangle. Twilight's love triangle is pretty pathetic in comparison, since Edward is perfect in every way (to Bella) and Jacob is kind of an obsessive freak (to Bella). Or, in other words, it's really no surprise at all that Bella ends up with Edward instead of Jacob.
On The Vampire Diaries, there's actually been a question from the very beginning as to whether or not the heroine Elena would pick the good boy vampire Stefan or his brother, bad boy vampire Damon. Why, you ask? Because both characters have that wonderful shade of gray that makes Stefan not quite the good boy he appears to be, and Damon has the hooker with a heart of gold complex, just with fangs and killing instead of sleeping with people for money.
Write a one-page story in which a love triangle is resolved.
Your goal today is manage the depth of The Vampire Diaries' long triangle in a single page. Don't go all Twilight on me, especially if you're using vampires. No sparkles. No fluff. No obvious conclusions.