I read posts like this & it never ceases to amaze me the lack of verbal disdain wives have for the women involved in the affairs
I completely disagree.
(And It's pure speculation what the ow did or didn't do).
What matters - the bottom line : is that it is the op's husbands responsibility towards her.
No-one forced him to get into an affair, no-one forced him to cheat, no-one forced him to do anything he did during the affair.
It was his choice
It's his responsibility.
He chose to betray his wife and family. He chose to spend huge amounts of money on his affair partner.
The ow is an irrelevance.
If it wasn't her, it would be someone else, at some other time
The op is being incredibly level headed in not focusing on and blaming the ow.
Which would play right into her h's hands incidentally.
Cheating men benefit hugely from their wives and partners focusing on the ow.
No women should be encouraging other women to focus on them or criticising them for not focusing on them.
(There are not nice women in the world - big shock. Your husband doesn't need to be anywhere near one of them. That includes up their vaginas in hotel rooms, that includes dropping big money on luxury days out and extravagant gifts for them; while they should have been at home with their life partner and kids).