Well, depending on the size of the company, and given that your divorce is final, I would go scorched earth on the two of them. Report them to HR, and let them try to subsist on unemployment. I have been known to recommend revenge of the highest order after something of this magnitude occurs in a marriage. Marriages are trusts. The two waywards used their positions in the company, and their spouses' trust in them to have their extra marital contact. Let them pay for that now. A little humiliation for both parties, and huge losses for each of them. I have told several clients to hold their water during divorce proceedings. Told them to not rat out the spouse, until it could do the most damage to that spouse. I had one WW who did carry on with the boss. She was the "Office wife", and they'd keep it under wraps when any other employee was around, however, she was seeing to his lunches, cleaning up his office, and according to her ex H, primping every morning for a year. All the things he did not get, her working on her appearance and doing all sorts of acts of service. When he found out, she pleaded with him to not out them. She would go quietly. No spousal support, and he kept their house, she even waived him buying her out. Her boss was on the hook for spousal, but they had no children. He was also paying off credit card debt, and a mortgage.
I told my client all through the seven months leading up to his decree, that he would keep his mouth shut. After the decree, we made an appointment with his attorney and we walked through the scenario, beforehand. The lawyer agreed that we would not incur any liability. He made a courtesy call to the boss' ex wife. Apprised her that he would be missing his spousal support shortly. She was OK as long as her ex suffered. SO....
One Monday morning, we make the call from my office. It goes directly to the director of Human resources at their company. We are in possession of their internal code of conduct. We quote paragraph, and chapter back to the director. We ask if she wants evidence, as we are quite prepared to show her confidential emails, etc etc. No need, the complaint is sufficient, as there have been unconfirmed charges made over the last little while, AND the two of them getting divorces just a few months apart spoke volumes.
We waited til nearly the end of the business day. I got the call from my client that his ex wife had just called. On another line, the boss' ex wife left me a message. Both of the ex-spouses were livid, and highly frustrated. The exWife wanted to know why he was so vindictive. Why would he want her to be penniless and alone? He laughed at her. He said that he would not be satisfied until he saw her begging on street corners. The exBoss was content to call his ex wife every name in the book, telling her over and over that she had just ruined him, and she could expect to NOT be paid that month. She sent him back a message that she would ensure that those payments get made. We waited until he secured other employment, at a vastly reduced rate, and then garnisheed the crap out of him. Unfortunately, I could only attach half of his pay.