Ox Man & Dog Woman
There will be some difficulty. This is because Dogs are rebels while Oxen are conservatives. Their opinions and interests are different. There will be a lot of hardship.
Dog Man & Ox Woman
Unless she tries to be a good housewife and take care of their home, it will be very difficult for them to have a happy life. And even if she does, there will still be a lot of hazards.
(Source: Love & Luck in the Year of the Dog)