No way to answer this question... but I suspect that since relationships (online or in the real world) are two way streets, take a look in how she might perceive you.
Did you do something/say something that may have compromised the trust you two may have established between each other? Seemingly, you are trying to find out much about her (her life, her history, her current and past problems, etc...). How much of your life have your proffered? Are you equally open with your day to day life and issues? Are you too forward and telling? Too much info for how she might consider appropriate for the relationship? Somewhere in between?