Affairs fizzle out pretty quickly. This sounds like it has happened all so fast and your wife is in it deep.
Why not drag it out, let your wife cool down? Give yourself the gift of time to let this play out. Once she gets out of th fantasy bubble, she may want to try counseling.
i am hoping this happens - but the reality i see is not this. affairs dont necessarily fizzle out quickly at all. i have 4 friends (couples) who met this way. either one or both was the WAS and now they have a great life together. some of them have old kids + new. in my W case, i can't see this being the case given circumstances of younger man, 24. temporary work VISA etc. BIG chance he is using her for that. she is an easy target in many respects.
M: 6 T: 12 Kids: 2,4 BD: Jan 2015 S: Feb 2015 EA/PA confirmed: Feb2015/Mar2015