Can two seriously incompatible couples change their incompatible marriages after studying Buddhism?

Eight-character fortune-telling and horoscope painting can only be entertained, and must not be taken seriously.

A happy marriage depends on the joint efforts, mutual respect, love and loyalty of both husband and wife. Now the divorce rate is close to one third. Can it be said that the current eight characters are different from the ancient eight characters? In fact, the high divorce rate today is mainly because the loyalty of both parties is not as good as before. If both sides believe in Buddhism, it must be a happy family, because Buddhism opposes all extramarital affairs and advocates marital loyalty.