Fuck, what did you do, play the orbital friends game
Why didnt you make a move on her or at least make it apparent you were interested in her

I would have anyway

I would have absorbed her into the collective first chance i got -

anyway - maybe this 'friend' is a guy shes into and fucking - maybe you would ahve found this out if you had made moves on her when she was at your house and or potentially saved yourself from wasting time