You dont really need to meta on this one (though there are other places which are eye rolling). I think its obvious she has a fire fetish and her level is clearly displayed so its just a matter of fire resist and appropriate level... all i did was had my one guy with nearly 50% fire resist walk up to her and she could not one shot him. I didnt know if she would attack nor how long the dialog would be but yoy cab also suck down a fire resist potion (which I had tons of but never used) to make it even easier.