What have done has gravely offended her. And you must use the last resort of apologies -- the dogeza -- something that every still-married spouse of a Japanese wife has done at one time or another.
And your confession must not be faked! A woman can easily distinguish a truly contrite heart and true admission of guilt from a man shedding crocodile tears.
But if you truly pass this test, the gods of the forest will shine down on you and bring you the riches of a long and happy life. Act wisely, my son.
I wish to humbly apologize to all the ants I accidentally stepped upon during the course of my life.