C669 What Does Dong'er Mean by This

"Don't say any more. I don't want to know. " Qiu Tong raised his head and looked at me: "Maybe, I understand." Qiu Tong sighed again.

Since Qiu Tong said that she understood, then I don't want to say anything.

We all stopped talking and ate in silence.

After a while, Qiu Tong raised his head, "Dong Er is gone."

I didn't look up. "How many?"

"She left by herself." Qiu Tong said