Relationships are just two auras interacting. In Human Design, we don't look for "good" or "bad" matches; we look for mechanics. Understanding your partner's Type can save your marriage.
Projector + Generator
This is a classic pairing. The Generator provides the energy; the Projector provides the guidance. Friction point: The Generator feels "nagged" if the Projector guides without invitation. The Projector feels "unseen" if the Generator is too busy working.
Manifestor + Manifestor
Two kings/queens in a castle. They understand each other's need for freedom. Friction point: Living parallel lives. They must make a conscious effort to "Inform" each other to stay connected.
9-0 Relationships
When two people come together and fill in all 9 centers, it feels like "completeness." But beware—there is no "window" out. You can get so lost in each other that you lose touch with the outside world.