The truth is simple
Your wife now fully understands that you're a beta -- the kind of man who deserves to be cuckolded -- and that from now on she is free to have sex with, and even date, any man she wants.
[cap written by Educated Cuckold at ... the other site ]
Your wife hasn't seen her ex in a couple of years, so you were quite surprised when he contacted you to mention that he'd be coming to town and would love to be able to see her, but he said he thought it best to contact you to check on whether you thought she would be interested in seeing him. Your wife has told you a couple of times that even though her break up with him was a little rough, she did still sometimes think about the sex they had together, which she said was really intense and deeply satisfying because he was so well endowed -- much better endowed, she said, than you.
Your first inclination was to tell him not to visit, but then you realized that would not be fair to your wife, so you checked with her, and a bit to your surprise, she said she'd love to see him. So you emailed him back to tell him that she was interested, and then he suggested taking her out to dinner -- and made it clear he was not suggesting that you come along. By then, it was a little late in the process for you to say you weren't comfortable with that, so you just gave it all your blessing.
And now that your wife has raised the question of having sex with him, it was obvious she was eager for that to be part of their "reunion", so you tried to hide your hurt feelings and jealousy, and told her she should do whatever it was she most wanted to do without worrying about your feelings.
SLUTTY 💋