GFE is transactional and something that is agreed upon beforehand by both parties with the understanding that it is a fantasy roleplay and nothing more.
If your story is true, I wouldn't consider what she did to be a girlfriend experience situation. Honestly, if everything you said was true, I don't think either party should be on a camsite, as a model or a member. The sort of behavior you both exhibited is extremely unhealthy. For her, she's a model, being on a camsite is a job. It's odd to refuse shows from someone, but still allow them into your room to take up what should be paid time for free and lose out on money from other members in the process. If she was saying she was in love, after such a short amount of time at that, and yet your only interactions took place on the camsite, that should have also been a huge red flag.
For you, you admitted in your post that you are not mentally well along with some other telltale signs which leads me to believe that you were very truthful about that part. In your posts here you jumped to being angry and lashing out at people really quick over some pretty innocuous posts. I'm saying this with the utmost sincerity, you should probably take a step back from this model, camsites and the internet in general and seek some professional help.