I'm not going to stop my band's show because my girlfriend got caught in the moshpit
Are you certain that your girlfriend got caught in the moshpit?
I'm pretty sure yes. I have seen her bouncing around a few times.
While it is understandable that you can't stop your show, you can at least ensure that your girlfriend is okay. Asking her if she is okay will show that you at least care about any negative experience that she may have had.
I don't care, my show must go on.
If you keep losing sight of her you might want to ask security to pull her out/. People can get really hurt in a moshpit.