Well, first of all, it plays on our emotions in a unique way. We are drawn into the love aspect, feeling the connection between the characters. Then, when the scary part kicks in, it's like a shock to our system. It might be the use of the supernatural, like a ghostly lover or a love that defies the laws of the living world. This blurs the lines between what we know as normal love and something more sinister. And it makes us question the nature of love itself. Are there limits? Can love be a source of fear? These questions are what make short scary love stories so fascinating.