So if she's not available, or interested, is she trying to manipulate me somehow? What's going on (very long)?

You;re both playing games with each other. You are both interested in each other but do such thoughtless things. Stop it. If you are interested in her, show it and stop playing I don't really care and you will find she will stop with the stupid lines about her bf and the trainer. Geez, you are both wasting time you should be enjoying. Grow up.