My late husband's ex had an affair with a work colleague. Dh left her.
After they'd been separated for two yrs, DH was summoned to see her.
She offered him the chance to go back...He just had to sell his house and move back into the family home which was now in her name only. He laughed at her.
6 years later, we got married. By then, Dh and his ex were supposedly on civilised terms.
For the wedding, his grown kids were going to say at their mother's place. She'd see them for a couple of days and then go away on holiday (with the affair partner) "to get away from the wedding".
I actually felt sorry for her.
We got back from our honeymoon.
DH: "Guess where Ex and AP went on holiday?"
Moi: "I don't know. Tenerife? Turkey?"
DH: "The sister hotel of [our hotel]. She wasn't happy with it. Very expensive and just 'decayed elegance'."
Our hotel was 4 star. She'd paid for the 5 star. DH wouldn't believe that her hotel choice was coincidence.
Ours shared facilities with the 5 star and we went there once, but didn't like it so never went there again. She spent all that money for a holiday she hated.