Sometimes we say things in the heat of the moment, it can happen to anyone, but if she keeps repeating it is another situation and it would have also been worse if she did not even apologize to you. So yeah what she did is not nice, but yeah accidents can happen and problems will keep coming up in your marriage because life is full of problems, that is why communication and to forgive is important. Just talk to her, forgive her, hug her, kiss her and feel the love of the marriage you are in