did you lead the conversation and she is just following? if yes then it is too much from your side. try to balance it... let her open up too.. if she didnt open up and wait for u to open up, try sth light to keep her going... if u start with heavy topic, it might scare her off... maybe wad she want is a casual talk but u sound like prime minister taking care of the whole country.

u need to observe how she responded... if she is just uhh oh... then too much... if she responded equally, then u r just nice... if u see she is trying to talk more but u just like uhh ohh then u r too little..