Answer:
I am there when you sit, but gone when you stand. What am I?
I'm sometimes white and always wrong. I can break a heart and hurt the strong. I can build love and tear it down. I can make a smile, but more often bring a frown. What am I?
I have to be broken before I can be used
I may seem real but it always turns out I was never there in the first place... you only see me during a certain resting stage.
As a state in America I am round on both sides and high in the middle.
A little house full of meat, no door to go in and eat.