Is it wrong of me to find it offensive when someone says "I'll pray for you"?

I was raised catholic, I have read the bible. I don't believe in a God, I am not completely denying the fact that there might be something, but I think all religions are man made and nonsense.
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I'm sorry if I've offended someone. I'll just give some context. The reason why it offends me is because it's always a reaction to me saying I don't believe in religion. When they say that, it's usually not with good intends, it's a comeback. It's saying "you are delusional, and since I am superior in my beliefs, I will pray for you, and you should thank me for doing this thing, that is essentially meaningless to you, but you should know that you will burn in hell if no one does this for you".
Is it wrong of me to find it offensive when someone says "I'll pray for you"?
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