My advice is not to hoard "ammunition" for later use, what good will it do? Are you going to throw it in her face during the next arguement? If so I can guarantee it will not have the desired affect. She will not see the error of her ways, she will not be shocked at the mess she can make, she will just think you have calculated a way of making her feel bad. In the end it will just make things worse. Do you want to live with a secret? Start thinking about your life, YOU, what you actulally want. Stop living around the problem.