women who don't know the value of nice guys

There is a fair chance that the target person is called 'Stacy'. Such people don't seem to like a guy who tries to make them happy. Apparently they rather want somebody who doesn't care about them and just want to have sex with them.
If you meet such a person make sure to not give her what she wants, instead pump and dump her while acting cool to get her attraction first. Friends told me 20 minutes of attraction should be enough.