My Wife Wore A Short Skirt With Nothing Underneath. I Asked Where She Was Going Dressed Like That. She Snapped, “To An Important Interview With My New Boss. Don’t Tell Me What To Wear. You Don’t Own Me.” That Evening, She Came Home, Saw What I’d Done, And Panicked.
https://youtu.be/IbouFBRxqgE

Just once I would like to hear that the man has been sworn off marriage for life after the divorce. Most of  the idiots go back for a second try.

To continue indulging in betraying your spouse on your anniversary knowing that you made a commitment to attend the dinner prepared for you, was truly the disrespect that ended the marriage.
OP your choice to end the facade of a marriage that you were in was totally correct. No relationship or marriage can survive on disrespect and resentment.
All the gaslighting and blame shifting from your cheating WW was straight out of the cheaters manual 🙄

Once you disrespect a marriage and an anniversary too she needs consequences  , cheater

Sue her, sue the AP for financial loss from the marriage.

She gave her AP herself on her anniversary to show her contempt.   It worked too well.  He got what he deserved, she got only what the law allowed.   Bet she never saw that coming😮

Contract fraud is a felony and whoever breaks the sanctity of the marriage gets nothing from the marriage.

Depending on the state they are in, the husband could take Roiden to court for alienation of affection some cases resulting in awards as high as $30 million or as low as $1 if it can be proven that the marriage was 100% affection-less. That would include them sleeping in separate beds and not showing any intimacy for a certain period of time. If affection is shown even once during that time, then the marriage can't be considered there being no affection. My sister sued her husband’s AP after the divorce and won because he was intimate with her once a month to cover his affair. The judge determined that even though it wasn't performed as love it was performed as intimacy and therefore she won the case. The AP was ordered to pay my sister $10.000. The AP sued her now ex-husband and was awarded $5,000 from him, which she paid to my sister. My ex-BIL was pissed because he felt he was paying twice for the same thing.

Finally  a man with a backbone

I would have recorded every call from my soon-to-be ex-wife.I record every call I receive and let the caller know so they can either continue or hang up. I even record calls from family members, and if you knew my family, you'd know why. Most callers continue the call, usually, only the scammers hang up.

WOW! What an exciting story!
Man's wife is cheating so he contacts his lawyer, obtains an independent review of assets, and reaches an equitable distribution of said assets and the divorce petition is uncontested.
I was on the edge of my seat when he decides to follow his lawyer's advice to avoid contact and solely communicate through her office. Mind-blowing stuff.

Why doesn't he take photos and videos for proof

You should have recorded their encounter when they kissed

So once again, OP is a moron.