So I'm in college and I have this HB 9 in one of my classes and she throws IOIs my way all the time. I know she's playing the field and not tied down to anything serious which is good. She initiates conversation first a lot texts me in class once in a while but we have yet to hang out more than once. She invited me out for her birthday but I couldn't make it out (long story). Finals week is right now and she texts me out of nowhere and asks if I need a snack and she brings me this hot sandwich to the library we eat it then she leaves. She invited me to the Flyers game with her friend who is also in our class (HB

and I went had a great time but got stuck sitting next to hb8. You're probably thinking ok dumbass pull the trigger, but here's the catch.
I really think her best friend, who is still hot but I want the other girl, is in to me and I'm trying to figure out how to play my hand without losing them both. I think the best friend lives in the shadow of the hotter one and sees me negging hb9 and doing false disqualifiers and basically wants a guy she thinks her hotter friend cant have. I'm pretty sure the 9 would get down but at times I feel like she might be trying to push me off on her friend because the 8 is in to me. How do I play this hand? Open to any and all suggestions...