Hey guys thanks for all the great advice - I wanted to provide an update. I think there's real merit to what everyone is saying...
So I gave her the 'I want an open relationship talk' which was about not rushing things and later on when I'm ready for an exclusive relationship she'd be a top choice.
At first it looked like it didn't work, and despite game and sexual game, I couldn't change her belief system.
But it turned out she was either bluffing or crumbled at the thought it was over. This is how it went down..she first sent me a text saying "I'm going to miss you". I replied "me too" and thought it was over. Then she said "it's too bad you want to end this' (possibly a reaction to my being willing to let go to get what I want). I said "Let's just take a break for now - never know what the future will hold". Then her response "What if we didn't take a break and I dated other people too?".
That was a few days ago. Today she snapped and told me to 'f-off' when I didn't respond to her text. We engaged in a solid back and forth texting and I'm actually quite impressed with her debating skills and ability to express herself.
What it means is that game works - this girl is head over heels for me, and she would take someone out if that's what was neccessary.
I'm not sure how this will play out, but if we ever have sex again it will be explosive. Otherwise, this will be a very high maintainance girl unless I can train her properly.
I'll let you know how things go...