Stop talking to her. At least for a while.. shes confused as shit and has no clue what she wants. She clearly wants this girl right now more than you, and you letting her cry to you right before they go fuck isnt helping the situation out. She sounds like shes telling you shit to make you keep waiting around so she can have her cake and eat it too. If you just let her go for a while maybe she will come around and yall can have another go at it, but for now... get over her as smoothly as possible. Nothing awkward or angry, just nonchalant and carefree.