male ox and female sheep are deeply in love, is that really all that bad?

Well, I don't think it is as bad as you thought. It's true that Ox and Sheep have quarrels and fights in their life. But life is full of joy and sadness. No one can make sure that they won't quarrel or fight in their whole life. Please remember that true love can conquer everything. If you two really want to be together, you shouldn't think about zodiac compatibility too much.