She is into feet, I’m not into feet. I have already told her, what do I do?

I recently acquired a new FWB, everything is good sex, conversations, hangouts 10/10. But she is very VERY much into feet, she will literally play with my feet and do other stuff with it. I’m not into feet and I have told her I’m not into it, seems like she doesn’t care and that makes me uncomfortable. Wtf do I do?