I wanna hook up with her

I have never been in this situation before, but if you guys could help it would be much appreciated.

My best friends girl introduced me to her best friend. HB 8, easy. HB 9 in nothing but a towel.

We've known each other for a few months and everytime we hang out there is always alot of flirting going on. Alot of blunt sexual jokes. Alot of sexual chemistry. Alot of attraction.
But she's also had a bf the last few months and she recently became single. Well my best friends girl put in a good word for me and just dhv'd me a little bit and helped me out by making me look like the perfect rebound for her. (Which I was completely ok with.)

Well I havn't K closed yet, and everything was good until we went to santa cruz with my best friend, his girl abby and allie(HB). As I said she recently got dumped and she was depressed the whole time we were up in Santa Cruz, to the extent of bringing the whole group down.
I did everything I could to cheer her up, brought out every great trick in the book(As far as game goes) and she wasn't having any of it. She even seemed to be getting a little annoyed of me.

So I backed off and we went home, and since we got home we've hardly talked. It's been about a week. We've exchange texts here and there but our convo's consisted of like 2 texts each. Both with me not replying in the end.
And I called her once and she didn't pick up, nor did she reply (No text, No Call).

I'm not sure what my next move would be. Everything was great and the stars seemed to be aligning when I heard about this santa cruz trip. But it all ended going totally south and I have no idea what to do from here.

It seems text game is out of the question as well as calling her, but I rarely get to see her because of work, plus she is too shy to hang out with me one on one.

Such a pickle....

Yeah, in all honesty I kind of figured that much. But I was hoping there was a trick to maneuver around all that because I hardly ever see her, and I'm trying to close already lol.

I've had this happen to me. But this was at a bar. Unless I was misreading my girl's friend's signals, it seems that she was receptive to my flirts. The question for me was whether this was a setup by the both of them to test me.

Wanting to, but, leery of....... I kind of backed off.