If you are sure there has been NO contact...then I would not pursue OM-W...but if you find out different I would pay the small amount to locate her...some of the sights list employers, addresses, cell phones, emails, etc...so you can take your pick...
But like I said, if she is not in contact I would rock that boat...you really have to pick that battle...and again, if I were you, everytime she mentions that you must be having an affair because of this or that...your come back should be "I am sorry you feel that since I do value my marital vows."...or anything along those lines...acknowledge, don't agree, don't defend, just state the fact that you value your marriage, vows, agreement, family, etc...no blaming, no pointing fingers, no explainations...
