I think at this point, you should just relax and talk to her when you're in there if its the natural thing to do. She knows you're interested and you've been up front - very cool for you that you've asked her. You don't have to do anything more. She's not the only girl in your world. If she does break up and wants something from you she should drop the hint. Thats my opinion.
"For the true meaning of victory ask the defeated warrior"