There are parts of her answer that people can quibble about but the overall point about boundaries is important. It's also something that people refuse to acknowledge or understand today, which may be a reason why so many relationships fail. I have zero interest in cheating on my girl, but that doesn't mean I can do whatever I want. I'm not going to casually flirt with a woman and then tell tell her "nah I have a girlfriend" when a proposition comes up. I avoid that situation entirely by simply not flirting.
I've got zero concerns about my girl cheating, and while my girl doesn't have concerns about me she's still gonna put her foot down in certain cases. I've def had her pull the "walk up behind your man and politely butt introduce yourself" move when I'm talking to another woman at a work Christmas party, for instance. Which is fine. That's probably more of a natural woman thing than it would be for a guy, because if I see my girl talking to some dude I don't care. People have conversations lol. But to her credit I guess, she's not the type to be having random conversations with dudes. She's pretty focused whereas I'm more casual with that shyt. If I'm at the grocery store and someone starts shooting the shyt with me, I'm gonna talk.