I'm going to let you in on a little secret, it doesn't. The grief itself doesn't change much. The grief is still a gaping hole in your heart, just waiting to be reunited with your child. But I don't think people say that too often; it's just overwhelming.
I will say this, though: while the grief itself doesn't change much, how we live with it, how we handle it and how we present it to the world does. That might be overwhelming too, though. What isn't overwhelming when your child has died? Not much. Maybe the Food Network.
Will you ever smile again? Yes. Will ever feel truly happy again? Most likely.
One of the most frightening thoughts to me in the early, dark days was the fear that Keely would be forgotten. In all fairness, it's a valid fear. Many have moved on, never to speak her name again. But, without a shadow of a doubt, there is a very important core of people that I know will never forget her and now I can see that is far more important. Quality over quantity.
As grief ages, what we need changes and often we don't know what that will be until the moment comes.
So when a newly bereaved parents asks me if it gets better, I don't know what to say. Better may not be the right word. Quieter, maybe.