There are always tell tale signs when you meet ppl like that. If you know what to look out for, you will not get entangled with them.
However, once you're in their web it's very hard to get out. Especially if you're already in a long term relationship with them.
I recommend all women to read the book "the gift of fear".
This is what I always tell people. My intuition is spot on, I’m rarely wrong when it comes not dealing with people. I had one of the most glaring examples of this once in my life. Forget red flags, it was flaming hot flags
I met a man during my lunch break on Friday. He called me midday Saturday wanting to meet up. I explained today is not a good day, can we do something another day because I had established plans. He demanded I meet him that day. He thought getting loud, being disrespectful and being aggressive would work.
All that did was let me know he’s a manipulator and at worse an abuser. I cussed his ass out, told him to lose my number and have a horrible life. Who talks like that to someone they just met and were trying to meet up with? I know who, someone who’s used to manipulating people. No thank you
Some people just don’t pick up on the red flags. My cousin is one of them. It’s so frustrating
ETA- another thing some people have been raised in toxicity that they think it’s normal. So they wouldn’t know what to look for