I am not going to be converted!

Why is it whenever I state that I am an atheist people look at me with a sad face and assume I will eventually see the light?  

My current sponsor states she is not Christian and that she uses her higher power as anything more powerful than her, but she still refers to it as a god.  She sent me an email and in it was a quote from Bill W. (The primary founder of AA) stating, "The atheist may stand up in an A.A. meeting still denying the Deity, yet reporting how vastly he has been changed in attitude and outlook. Much experience tells us he will presently change his mind about God, but nobody tells him he must do so."  Grrr it makes me so angry!  They may not tell me to find god, but they assume I will eventually! Really?!!! Mind your own damn business!

How come agnostics and atheists must eventually be converted and see the "truth", but christians or believers don't eventually have to be converted and open their eyes to the facts?