To Grandmother's House We Go

Sorry I haven't posted in a while. I am taking care of my grandparents while my parents are in Mexico. It has definitely been an interesting experience so far. When I got here Friday night, I could hear my grandpa in the other room asking my grandma if they were too old to have children. She had to keep explaining to him that they were too old fifty years ago. My grandpa gets pretty forgetful & confused.
Later that night . . . actually, right in the middle of it, I woke up to my grandpa in my bedroom. He was shuffling in on his walker (when I say shuffle, I mean going 0.25 mi/hr - if that). I sat up in bed and said, "Grandpa?"
He sounded totally scared and asked, "Who's there?"
"Elizabeth."
His voice changed to one of absolute adoration. "Oh, Hi there!"
"Grandpa. You need to turn around and go back to bed."
"Oh, ok. Thank you." He then shuffled back to his bedroom across the hall.
It is so sad to see him lose his mind. He is still so sweet and loving, but he just gets confused and disoriented all the time. He's always asking me who I am, and then smiling with remembrance when I tell him, only to ask my grandma who I am a few minutes later. It's heartbreaking to hear him talk. He doesn't even remember his wife part of the time. I never realized how scary it can be to get old.