Re: loseing your viginity?
Hi poptarts100, your subject and actual question are about two different things since virginity isn't determined by the state of your hymen.
For your hymen, you can see it by just looking down there, so if it's no longer forming a kind of covering to your vagina, then it's probably broken. From your description, your girlfriend probably did tear it at least a bit.
Virginity (official, dictionary definition) is when someone hasn't had sexual intercourse yet (penis in vagina) so fingering doesn't have any effect on that status. I hope that makes sense.