Editor's Note: Do you need sound, Biblically-based advice on an issue in your marriage or family?  Dr. David will address questions from Crosswalk readers in his weekly column. Submit your question to him at: TheRelationshipDoctor@gmail.com.

You know them by their roller coaster emotions and lives. One day you’re their best friend, and the next you’re their worst enemy. All the while, you’re scratching your head, wondering what went wrong.

This CrazyMaker, the third of five that we’re talking about, has undoubtedly had a difficult life themselves. Often abused in childhood, with a history of troubled relationships as an adult, they are vaguely aware that life isn’t working for them. While they are still inclined to blame their problems on others, deep inside they have an inkling that they may be contributing to their problems.

It is extremely difficult to be friends or married to a Borderline Personality. She (I use the feminine pronoun because the majority of Borderlines are female) employs a defense mechanism known as projection to rid herself of unacceptable traits by projecting them onto you.

They commonly say such things as:
• “I don’t do such and such, you do.”
• “I’m not at fault, you are.”
• “Why did you do such and such?”
• “If only you would have…….”

And so it goes. By projecting their unwanted qualities onto you, masterfully shifting the blame, they never have to be held responsible for their actions.

Those in relationship with a Borderline quickly learn that they must walk on eggshells. If not careful, an eruption may occur at any time, for any reason. And if the eruption happens, it will never be the Borderline’s fault.

Having discovered the fragility of the relationship, those closely connected to Borderlines are often plagued with self-doubt:
• Could I have handled that situation differently?
• Did I do something wrong?
• Do I deserve this attack on me?
• Am I at fault for what is happening?

Don’t be surprised if you doubt your view of reality and question whether you are crazy. First the Borderline has you questioning your sanity, and next she makes you feel wrong about yourself. Her methods is clear—attack you and your thinking.

One of the questions I’m frequently asked about any of the CrazyMakers is this: “Do they know what they’re doing?”

Rest assured that none of the CrazyMakers sit back and create a diabolical plan to drive you nuts. Each of our CrazyMakers have personality issues that lead to their behavior. They generally have little insight into what they’re doing, and don’t have a plan to act the way they do.