My granddaughter Lily used to run into Grandpa Jim’s arms the second she walked through our door. So when she came to stay with us for a week and suddenly refused to hug him goodnight, I thought she was just tired, until she looked up at me in bed and whispered, “Grandma… he’s different.”

Lily had always loved my husband like he hung the moon.

The second she walked through our door, she went straight to Grandpa Jim. She’d wrap her arms around his waist and announce, “I’m here,” like she was reporting for duty.

He taught her to ride a bike, shuffle cards, whistle through her fingers.

He let her wear his old baseball cap around the house like a crown. She called him her “favorite person,” and he pretended not to enjoy it.

Last month my daughter, Erin, called early on a Monday.

“Mom,” she said, tight and tired, “can Lily stay with you for a week?”

“Of course,” I said. “Bring her tonight.”

Erin paused.

“Thank you. We’ve got work issues. It’s… complicated.”

That evening Lily exploded out of the car and sprinted up our driveway.

“GRANDPA!” she screamed.

Jim opened his arms and she crashed into him so hard he grunted.

“Easy, kiddo,” he laughed.

“You’re getting strong.”

“I’m seven,” she said, like that explained everything.

For the first three days, it felt normal. Pancakes. Board games.

Jim letting her win and Lily pretending not to notice.

If Jim walked into a room, Lily followed. She perched at the counter while he made coffee and narrated every step.

“First you scoop,” she said solemnly. “Then you pour.

Then you wait. Then you do not drink it because it’s yucky.”

Jim looked at me. “See?

I’m raising a critic.”

On the fourth day, she got quiet.

At dinner she moved peas around her plate and answered Jim’s questions with polite little “yes” and “no.”

Jim tried to keep it light. “Hey, Lil. Want to play cards after?”

“Maybe later,” she said.

That night, after she brushed her teeth, Jim stood near the couch like he always did, waiting for her hug.

I smiled.

“Go give Grandpa a hug before bed.”

Lily stopped in the hallway. She looked at him, then shook her head once.

Jim’s smile held, but I saw it strain. “No hug tonight?”

“I’m sleepy,” she said.

Jim nodded.

“Okay. Sleep tight.”

She walked into the guest room and shut the door.

Later I tucked Lily in. She stared at the ceiling like her thoughts were up there