How long between the first and second time?

5 days for my wife. Her first time was on my birthday. 4 days later I told her it would be ok with me if she was with him again, I would just like to be told after the fact. We had sex that night and when I came home from work the next day, she told me she had been with him again.

She had been struggling with some guilt about being with another man and enjoying it more than with me. After o told her it was ok and my little cock in her, she went back to him.