"we are all vulnerable to people like this"
No.. "WE" all are NOT! Only those who lead their lives through a FEELING first instead of a LOGIC/BRAIN first become vulnerable. Common sense rules. Emotions get played.. Logic will win out every time IF you always look at things through a THINKING filter before you determine how you FEEL about it.
That's what makes us unique in the animal kingdom.
Sadly, society has pushed so many of those to disregard their THINKING and instead react with FEELING first. BAD move
oh puhhlease......not all of us are as perfect as you profess to be in your profile.
Don't know about you but what my heart feels matters a whole lot to me.....but if you want to approach relationships like a clinical excercise in science, be my guest.