"If you have ever sat in front of the television on a Friday night wondering 'What the hell happened to the Fairy Tale? Where's my Happily Ever After?' Then it's time you knew the truth: Cinderella was a liar," says Brenda Della Casa, author of the book of the same name.

But we keep trying, don't we?

Maybe it happens at work, maybe it happens when Girls Night Out collides with Boys Night Out. You meet, you flirt like mad, you talk. You're both witty, charming and gorgeous. You exchange phone numbers and possibly saliva.

As you go home, you start to feel that tingle that tells you this guy might be just the guy you've been looking for. You daydream about what he might be like as a boyfriend, you give your girlfriends and co-workers the run-down on his finer qualities, and by the time he calls to make a date, you are practically sitting on cloud nine.

You go on your date. Sparks are flying between the two of you as you head to his car. And then something goes terribly, terribly wrong.

Della Casa says, "Somewhere between drinks and the goodnight peck on the cheek you decided that he might be "The One," and decided he would not be calling you again -- ever."

Sure, he might have been under some sort of a twilight frog spell. But more likely, you've turned into one of the "Sisters" no Prince wants to date. In Cinderella Was A Liar, Della Casa not only pinpoints 13 Prince-repelling stepsisters, she also offers a few clues as to why you might be acting the way you are, and the little behavior changes that can make a big difference to your happily ever after.

Here are six to watch our for.

The Dramatic Sister

"She's so fair, so fun, and so damn loud! A dramatic sister fashions herself a diva (which she mistakenly perceives as a good thing) and loves to put on a show. Everything from where to go to the wrenching details of her latest romantic drama is such a huge production that everyone around her feels drained by the second hour. The ugly truth is that she's an energy vampire: she just sucks."

How to fix it: "Your emotions are often raw and concentrated which makes it difficult for a suitor to believe in the sincerity of your actions," says Della Casa. "Toning down the explosions and taming the emotions will highlight your more endearing qualities and calm his fears that you might wind up putting a rabbit on his stove."

The Jaded Sister

"With more baggage than Eva Peron on her Rainbow Tour, discussions start out light and airy and soon take a turn for the morbid when the topic of relationships comes up. Still pissed over her ex, who was a total cad and did not deserve her, she often unwittingly makes comments about suitors that make everyone feel they are wearing a wool sweater in a downpour. Oh, and please don't bother sharing news about your new prince! She doesn't believe they exist."

How to fix it: "You're going to have to deal with your issues and stop cross-examining your dates or you'll be eating alone forever." Della Casa suggests, "Cut down the barbed wire and learn to trust again. Otherwise, the only person who loses here is you."

Sister Self-Importance

"This sister can't figure out why she's not famous yet. She's a total star! She is fantastic, interesting and drop-dead gorgeous. Just ask her! She's always wanted to give one of those celebrity interviews she loves reading which is why she treats every new suitor like an US Weekly journalist. By the end of the night [her date has] enough info on her to snatch her identity and she knows his name; well his first one at least."

How to fix it: "Talking about yourself makes you look arrogant at worst, self-centered at best. The next time you're on a date, ask him three questions for every one statement you make about yourself."

The Saucy Sister

"This sexy maiden loves to flaunt her, uh, appeal any chance she gets. With her tightly bound corsets, double-entendres, heaving bosom and six-inch stilettos, she oozes sex, dresses sex and talks sex -- and then she wonders why all she gets is sex."