It's Always in the Background

We were eating dinner in a Shoney's restaurant when the brunette twin came to me with tears in her eyes. She said, "I miss Grampa and Aunt 'Lene."
I said, "Why are you thinking about them now?"
She said, "There are a lot of grampas here. I just want mine."
Even when we're on vacation having fun, it's still in the back of her mind. I wonder how often she's sad and we just don't know about it.