I have three leads:

Option A - this is a girl I work with. I went on two dates with her, both from her initiation. We made out multiple times. The chemistry was definitely there. However, over the last few days since our date she has been acting very aloof. She hasn't texted me, she doesn't talk to me as much at work, doesn't ask me to walk her to her car anymore. I did piss her off at work from pulling a minor dick move, but that seems insignificant compared to the attraction she's shown for me. In my gut I feel that this lead is dead, but I'd like to pursue it to the bitter end. I see a few options for follow up: 1) explicitly ask her where I stand with her. 2) text her and try to set up a date 3) speak to her in person and attempt to set something up.

B) Option B is a girl I formerly worked with. She has hinted at me very heavily in the past that she's interested in hooking up and gave me her # before she quit. Do I directly invite her to come over to my place? My obstacle is that I only have Airbnb for logistics. Do I tell her explicitly tell her that I'm inviting her to an Airbnb? Assuming I smash and want to do it again, I'm going to have to rent out another Airbnb at a different location. How would I explain that?

C) C is a girl that has a boyfriend. C has shown strong indicators of interest to me, though I'm not fully certain of her interest in me. She believes that I am a cokehead and has told me she wants to get fucked up with me. The problem is that I have never done coke I don't have the resources to acquire coke. I am unsure how to proceed here. Grab her #, invite to Airbnb, and ignore coke request?