Do my parents fear that I'll leave the faith?

[Whateverist]

I'm already atheist and I haven't told them yet. Sometimes I wonder if they're sure I'm a believer, if they fear that I only pretend to believe, or that I'll someday leave the faith. When I told my mom I had some doubts about the faith, she insisted that faith is good and I should stay, even though I didn't say I want to leave. She was speaking calmly and gently, but I felt like she was fearing and didn't want to exteriorize it. Dad is also pretty insistent about faith. My parents don't believe in Hell, so it can't be that. What they fear is that I will not follow the herd like a good sheep and life would be harder for me as a minority. 
My question is: are they sure I'm a believer? Can I find the answer without asking them?

Also, Happy Holidays! For those who celebrate them and if you don't, then Happy Nonholidays! or Happy Commercialdays!

  No they probably do not know, it sounds like they are not Christians either and if they are not, whether they believe in hell or not if the whole family doesn't change you will spend eternity in that non place. Just because you refuse to believe doesn't make what you think correct, it means you are fooling yourself so you can live the life style you have chosen. I just responded to you in another thread where you called Christians pussies, I believe you were actually speaking of yourself since you are afraid to tell them the truth. Oh, you also mention a moral code in the other thread, apparently in the atheist moral code it's okay to lie, that is exactly what you are doing when you withhold the truth from your parents. So the next time you want to rave about Christians I suggest you get the log out of your eye before speaking.

GC

That's right, it doesn't matter what anyone thinks.  No one is going to hell regardless of what anyone here thinks.

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I didn't call all christians pussies, just the ones who practice religion out of comfort rather than actual belief. And I didn't say that all atheists are moral or that I'm perfectly moral, I said that there are a lot of rules in the Bible which christians don't respect, I don't have a moral code on paper which I don't respect, that's what I said. And sometimes lying is required. Do you know what would happen if I told my parents the truth? They would be shocked, they would enforce Christianity even more on me. Dad especially would make a scene. I would expect him to forbid me to go to college. So yeah, I'm a bit of a pussy too, but the "imagine that a God exists for comfort" persons are even bigger pussies. They're literally afraid of reality, at the very least I'm afraid of the people I depend on.
Not to mention that I'm a happy case, there are many atheist kids with fundamentalist parents.

 For a Christian lying is never acceptable. Christians respect the moral code that God has given us, do we comply always, no we do not we are humans and we fail, we have seen the need of Jesus to redeem us unto God. Lying to your parents means you do not trust them nor do you respect them and I can tell you this leads to a dangerous life's choice. Of coarse this is all your call but I see it as a disaster later in life. Facing up to your parents now will in the end have a better result.

GC

And yet they lie all the time and they were more than happy to vote for the biggest liar ever to run for president.