If you want to chat with her in real time like how you did on the Vent/Listen Chat unfortunately there isn't a way to talk to her that way. I would say perhaps become friends on Facebook or Skype or something like that if you want to chat in real time. Since you friended her you can send her messages, it basically works like an email message that way, so you can still talk to her on this site but only through inbox messages and private messages and so forth. Real time chat you'll have to use some other site since Vent/Listen is completely randomized.
