She’s a real slut.
youcanhavemywife.tumblr.com
When you wife first mentioned that there was a man at her gym who has been obviously flirting with her, you didn't think anything of it, and in fact, you laughed with her about it and you even felt it was sort of cool that other men found your wife attractive.
Then when she said he'd asked her to meet him for coffee, and she said she had told him that she would, you assured her that you were fine with that -- telling her that if she liked him and wanted to have coffee with him that she should go ahead and do it.
You had even laughed with her when she told you that he'd told her how much he'd like to have sex with her. The first time he said that to her, she said she had felt very flattered and had reminded him that she was married, but he'd said he knew that, and told her that her husband was a very lucky man.
But now, it seems that his persistence was about to pay off, and your wife was no longer checking with you to find out if this was all OK with you. This had become something that SHE really wanted to do, and she was definitely going to do it.