Why do we seek partners similar to our parents?

Why do we seek partners similar to our parents? This is a fascinating phenomenon and it has deep psychological roots. Model of early attachments. Our relationships with our parents form the attachment model that we carry into our adult relationships. Seeking the familiar and comfortable. Parents are the first people we interact with, and their behavior becomes our 'norm'. Desire to replicate or fix. If we had positive relationships with our parents, we might seek a partner who helps us recreate that love, and vice versa. Psychological 'rehearsal'. We may look for partners similar to our parents to relive familiar dynamics and find ways to deal with them more constructively.