1) The Crazy Co-efficient

Talking about each of your respective exes after knowing each other for a while means you’re in a place in the relationship where you’re comfortable sharing. Sharing is great, but if she describes all her exes as “crazy”, then chances are she’s the crazy one.

We all have a couple crazy exes who go a little bonkers after the break-up, but if your girl has a string of exes who all seem to be just short of insane, she might be the psycho link connecting them all.

Whether she’s intolerant of normal dude behavior, so high maintenance that no guy could handle her, or insanely jealous to a point of cray, describing all of her exes as crazy is a surefire sign to run away and run away fast.

2) The Attitude Abnormality

She may be sweet as sugar pie to you, but seeing how your honey treats others is a telltale sign of what kind of a heart she has. Does she snap at the waiter at restaurants? Toss her keys carelessly at valet drivers? If so, get out and get out now. A woman who is lovely to her friends and her man, but rude and careless to others, especially service people, not only makes her mean but a snob as well. A superiority complex is never a fun thing to deal with. And, should you ever do anything she disapproves of, she’s likely to kick you to the curb faster than you can say, “I should’ve known.”

3) The Picky Particle

We all adjust little things to fit the needs of our loved ones: sitting through chick flicks, pretending to like antique shopping, etc. While making compromises are labors a love, if she nags and nitpicks you about every little thing, it’s not a good sign. Are your clothes, hair, the way you handle your friends and situations not good enough for her? Does she subtly manipulate you to change things you were perfectly happy with?

If you are looking to improve your style, for instance, and ask your trendy girlfriend for advice, that’s fine. If you’ve always dressed a certain way and liked it and she tries to get you to be another person? That’ not. You know you’re pretty awesome. Now find someone else who feels the same.

4) The Demanding Diffusion

We all get jealous. It’s human nature to protect your loved ones. But when you’re dating someone, the key is having mutual trust. If there is none of that – then, well, there really is no future. If she demands to know where you are and what you’re up to every second of the day, she 100% does not trust you. Protective is one thing. Possessive is another.

While you are never going to know every little thing about what another person, even the one you’re dating, is up to, you can trust them to be a good person. She obviously does not if she’s the kind of person who goes through your phone and internet history. Take our advice and leave all Demanding Debbies at the door.

5) The Headgame Hypothesis