Well here's you answer. Here bf is coming in two weeks, and I bet if she could have one wish, it would be you disappearing from her life , her spots and bars ect. A woman cant be with two men at the same time. Her bf is probably being all exited to see her, and my bet is the relationship ain't as open as she claims.
You had you fun with her and it's time to pass the torch. You had your turn. No hard feelings, because that deal was agreed upon long before today. I'd anything you should be thankful to her , that you got this typical RP lesson. This is just how some women operate.
Do nothing . Find a new woman. After some time she'll reach out, but it's not worth waiting for 3-6 months just be her rebound.