I'd wait until you run into her and just say "Hi," pleasantly. It sounds a little complicated and intense with a lot of mind reading. You aren't dismissing her - you've let her know where you stand and it is up to her to respond if she is still interested. Guessing what other people are thinking is exhausting. At a certain point, we don't have a choice but to base our response on what they say and do, not what they might be thinking.