Twilight: Fire and Powder

"These violent delights have violent ends And in their triumph die, like fire and powder, Which as they kiss, consume." Although, this quote is first mentioned in New Moon--the second book of the series--, I believe it can apply to all the books in the Twilight saga. But, what does a quote from Shakespeare have to do with Vampires and Werewolves? Let's first explain what it means in Romeo and Juliet. Romeo and Friar Lawrence are waiting for Juliet to arrive. Friar Lawrence wisely advises Romeo to love moderately because if his loves becomes too intense it might fractures or perhaps blow up and destroy their relationship.
In Twilight, Edward is vampire who cannot resist Bella, a human, and her blood. It's like his own "brand of heroin", constantly calling him to Bella. Well that sounds like fire clashing into powder. It's dangerous. Perhaps, Stephanie Meyer chose to include this quote to foreshadow Bella and Edward's romance and a potential heartbreak. Their relationship is forbidden by Edward's family purely because a vampire cannot fall in love with a human. As Edward put it "the lamb fell in love with the lion." It doesn't work unless one person is inflicted pain (like the lamb). However, aren't fire and powder meant to be together? When fire and powder mix, they combust into a delightful array of lights, like fireworks. Edward and Bella's romance is disastrous yet profoundly beautiful. It's rare.