Sorry to say as long as WW lives there close to OM whether you are there or not there will always be the chance for this affair to restart.

That's why there must be NC, no contact for life. Can't have NC down there with the OM living close to WW.

You want to recover this marriage then you have to get WW to move back home to here.

WW complains tell the about the need for NC and that her actions polluted that place.