Men are predators. Their camouflage is lying.
Some are better at it than others.
The only defense a woman has is her natural skepticism. It manifests as doubt.
If you have doubt your alarm is ringing.
Nature (i.e. evolution) has a timed release capsule of hormones which serves to over-ride doubt so that you can replenish the species.
The symptom of this is doubting your doubt and asking strangers for advice!
If you can't trust your own mind and values how can you determine how and whom to trust a man?
Pretending any man is the "right" guy when your doubt alarm went off is swimming with the sharks.
You may want a relationship with somebody but you will end up just being his "chum."