I honestly don't know why we need thus over dramatic "evil temptress" nonsense.
Here's the facts
Sometimes married people try to shag other people. Sometimes single people try and shag married people.
In a sexual dalliance, there's sometimes a "persuer" and sometimes a mutual attraction.
Men aren't all chasing their secretary around the desk. It's not 1955. Affairs often do involve a woman forming a crush on a married person. They are sometimes not subtle about making that clear.
All people, married or not, are susceptible to flattery to different degrees dependent on character, self esteem and how vulnerable they are at that point in their life.
I've got a friend who's got a wealthy husband who's just declared himself in love with a girl 16 years younger who he's known for a month.
They've got two young kids and he's going to abandon it all after a marriage thats gone on 22 years. For someone he's known 5 weeks!
The wife went (as you do) to Look her up on socials to find she's pre-emptively been blocked everywhere.
Now, this husband is a prick, make no mistake. And he isn't "in love". He's an insecure, sad man with obvious issues who's flying high on dopamine from a young pretty thing probably acting doe eyed.
The girl, let's also make no mistake, could easily pick a man more her age or single (she's stunning) but she's probably decided she quite fancies the big house and the trips to the Maldives. She isn't in love either.
People who have affairs are generally so embarrassing! And women DO go for other womens husbands. The fact they're happy to be taken doesn't absolve them from shithousery.
Men think with their dicks in some cases. Sadly