A lot of horror romances don’t work out. Whether it’s the demon/internet connection hoping to impregnate you, the stalker/voyeur/vampire obsessed with you, or that dreamy girl who turns into a hungry panther every time she’s aroused – finding Mr. or Ms. Right in a horror movie can prove dangerous.

Let’s not even talk about prom dates.

Here are five of our favorite examples of the dire, bloody, terrifying reason that following your heart is not always your best bet.