Rooster Man & Rat Woman
They will only be arguing all day everyday. There will never be peace in the family. They have different dreams while sleeping in the same bed. Their love ones will have to go away.
Rat Man & Rooster Woman
They can live together. Although she is extravagant, she has a lot of virtues. And the passionate Rat can tolerate her.
(Source: Love & Luck in the Year of the Dog)