Nice guys don’t finish last don’t ever believe that nonsense.
You just ran into a female that allowed herself to be treated like a floor mat who has become accustomed to the type of Male (notice I did not use MAN ) that has no respect for the female species.
She has no self worth nor loves herself enough to recognize a good man when he’s standing in her face! So fellas, continue to be nice because one day God will bless you with a woman that is worthy. Leave the damaged goods alone. If you hear her say “he’s too nice” cut all communication off..that tramp is lost.