[quote=briansd1] . . . then don’t give her the satisfaction of making the first step.
Women like to play mind games. He should play better if he wants to win.[/quote]
You (as a man) seem to be pretty up on the mind games, too. Putting emphasis on something as petty as who makes the first step in something as serious as a divorce suggests that you are a bit clueless in this category. Based on the OP, it could be that the husband believes that the wife has figured out that he is having an affair. . .
A more healthy approach might be to try to find out, just for example, whether the marriage might be saved, but that is dependent on the facts of this particular situation.