You believe she is trying to move on but you don't know for sure? If that's the case, you need to ask her. Pay attention to her facial expressions and body language in case she decides to try to lie to you about it.

Depends on the Girl,maybe she likes interest from other men? A long time relationship?What are her goals? Similar to yours? Does she have kids? If so,is the father in the picture?

Why hasn't she cancelled site? Cancelled mine when I met Dan here.

Don't put all your eggs in this particular basket. Sounds like she's not as into you, as you are into her.