Girl I have interest in has a 'boyfriend' but all signals in person point otherwise.. I decided to escalate with her anyway and it seems to be going well the flirting got a positive response and then I asked her what she was going this upcoming day..

I opened the door by asking her out rockclimbing and she responded "Oo, im not sure, Just us?" to which I reply - "nope it's usually pretty crowded"

I think I have already over invested with this girl but I don't know if she is worth pursuing a little more. My thinking is that maybe the boyfriend is real and she's just waiting to branch swing or she is otherwise conflicted for some other reason.

Just next her or continue the chase? What do you think I should do?