"Listen, I bought you a record," I told her. "Only I broke it on the way home." I took the pieces out of my coat pocket and showed her. "I was plastered," I said.
"Gimme the pieces," she said. "I'm saving them." She took them right out of my hand and then she put them in the drawer of the night table.
Why is it significant that Phoebe saves the broken pieces of the record Holden bought for her?