Replying to SItuation here , need opinion.

So im filming this girl and shes really good at skiing. One of the best rider on our team , I got her 3 sponsors, I get her free tickets when we film, I pay her food, I film her for free all the time and I travel a lot for her. Sometimes I dont even get one good shot when we film together but I stay calm and positive. The thing is she always complains, I dont film when she wants to, I dont go where she wants to. I dont pay stuff for her that I pay for others. I dont like that, but she's our best rider.... I really dont know what to do...