learning girl

A woman who unknowingly spends a significant time in a bad relationship teaching her significant other to be a better partner and/or lover for their next girlfriend(s).

I spent five years with him, put up with all his bull#&$*, decorated his place, gave him a makeover, and taught him how to behave, only to have him appear like a prince for his new girlfriend Hannah. Guess I played the learning girl in that relationship.