You should warn him. Females have no problem warning each other about guys.

please tell him what she said. NOW!!!!

Tell her getting ran thru only will make her unhappy. Show her the stats of unhappiness of women and rates of divorce for high notch count women. Destroying what she has will only make her miserable in the long run. SHE HAS TO DO THINGS WITH HER MAN THAT MAKE HER NOT BORED!!!

It's her job to try new things sexually to maintain interest in her man. It's her job to go to new places WITH her man, not girls/cheaters trips, to maintain interest. It's her job to be loyal in order to not die alone. She is 30, her value is gone. Her breaking what she has is only going to destroy her life.

PLEASE WHATEVER YOU DO --- tell him what she said. As a man, at the very least, it's your job to save him from a banshee. You could save this man from paternity fraud

Tell her boyfriend he's becoming betatized. Shoot him a copy of The Rational Male. Poor guy is about to hit his peak SMV just as she is starting to hit The Wall. This is a very common situation where women listen to feminist lies like "you have unrealized potential, gurl! Don't let no man hold you back. Housewives are slaves. Smash the patriarchy".

My mom bought into the lies and yeeted her husband and 3 kids to go party and travel. I strongly suggest you intervene so as not to have your nieces and nephews all fucked up in the head. Maybe even show your sister some WAATGM posts by post-wall single moms. Or even some Kevin Samuels clips. Deprogram that feminist BS out of both of them.

Better yet just tell him he can't marry her until he's completely read The Rational Male. Tell him you'll object at the wedding and embarrass them.

Women man. Probably get divorce raped soon

And cheated on too