Being in love with someone who has to constantly fight the urge to eat you is not sexy.
Twilight - Love
Twilight - Sparkling in The Sun
Typical Vampire folklore states that Vamps burst into flames when they step into the sunlight. It's a cliche fact at this point but a cool cliche that's probably not worth switching up. However, in the Twilight Saga, while the Vampires can step into the sunlight, it's not a favorable decision because instead of bursting into flames their skin sparkles like diamonds. Um...scary?
Twilight - Brazil
Bella and Edward went to sunny Brazil for their honeymoon despite the fact that Vamps in this series don't step into sunlight because their skin glows. Blank stare.
Twilight - Preggers
The female Vampires in Twilight can't pro-create but the men can spread their seeds. However, it can be dangerous. When mortal women are pregnant with Vamp spawn the gestational period pretty much lasts for a day and is usually a guaranteed fatality for the mother. A 24 hour pregnancy? That would be nice if you didn't have to die. What part of the game is that?
Twilight - Rip
The only way to kill Vampires is to tear them to shreds and burn the pieces. This is so extra. What happened to a good ol' stake in the heart?