"Imago" relationship. "Imago is classical Latin for "image". This word was chosen because of the fundamental idea that within each of our brains is an unconscious picture or an imprint of the partner that we seek. And we will tend to unconsciously select a person who is uniquely qualified to frustrate us. So if you experience intense frustration in your relationship, you are probably hooked up with the right partner..."

From "FAQ Imago Relationship Coaching"