You walk around town with your dignity in tact and make sure everyone knows you want to save your marriage and protect your family... Keep that up and circulating...
The more you get that message in the air, the more the OM looks like a meddlesome creep
If people ask what's the status of your marriage you tell them you don't know if that creep's gone... he hasn't even bothered to apologize...
Collect as much intelligence as you can and get as many eyes around town as you can.