So you live a Christian life even though you think the idea of God is nonsense?

One does not have to believe in God to chose living a good life. 

Yes, fake it until you make it!  
Faith in love is a tentative pretend play. 
Imagining that love exists is tentative play and using a sense of humor to have a positive frame of mind. 
Imagine that "people are out to do me good". 
A passive openness to the possibility of being loved is good enough for a "working experiment", even if you don't fully "believe".
Don't get hung up on faith.
God is love.

I don't believe that Christianity or the God thereof is nonsense. I will say that even if I knew God didn't exist, I would not regret having lived as a Christian. Other than that, I have no reason to believe that the existence of God is precluded by any facet of science, reason, logic or reality. Thus far I haven't been presented with that.  The atheist may be right, but I don't see any reason to be an atheist over anything else thus far. It doesn't really seem to be based on anything I can examine. Whenever I talk to an atheist it all tends to boil down to the fact that they don't like God. They don't like his rules and they don't want there to be a God unless they can live however they want and still enter heaven.  Which is fine as far as opinions go, but not evidence of a correct stance.

No, that would be stupid.

 No i live nothing of the kind chump.

They have some good ideas for sure.