nymfauxmaniac
Woman who doesn't actually enjoy sex but feels driven to pretend that she cannot get enough of it in order to attract make attention or personal gain.
"She sexted me for weeks before we met in person and then she was all over me at the club last night in front of her friends, but when I got her alone all she wanted to do was tell me about her problems while trying to get me to pay her bills. I can't believe she turned out to be another nymfauxmaniac!"