I'm very sorry to hear this. If she's religious, I would ask her if Jesus would respond in the same manner she did, but that might just start an argument so maybe just let it go.
If this is the way she acts, that's on her, not you.
It is my belief that what happens when you die is entirely up to you - in other words your beliefs become your reality - so don't let anyone convince you that you are going to hell, as you may indeed find yourself in some hellish environment. Granted, it is just an illusion, but no more or less of an illusion than what we call everyday life. One of the original purposes of religion was to provide a familiar roadmap in this new environment (after death). The crossing of the River Styx is another example.
If you watch near death experience testimonials, you will notice that Christians often see Jesus, Catholics see pearly gates, people who believe they are going to hell have hell like experiences, still others who think nothing happens find themselves in a void. This is all temporary, however, until you come to understand that consciousness is indeed the creator of reality - it's just there is no built in delay like the one we currently agree to in this particular incarnation.