What is the meaning of this!?

"Why did you come here?" Li Jun asked as Shen Yun bit into her third slice of bison meat. 

She looked down at the table, unsure whether to answer honestly. Li Jun noted her hesitance and reached out toward the plate once more.

"If you don't tell the truth, I will take the food back." He smiled.

Shen Yun shot him a murderous stare. She wasn't going to let him take it away again. 

"I usually come here when I want to think," she admitted, reaching for another piece. 

"What did you want to think about? I hope I'm not interrupting."

"No, it's fine," she said, swallowing first to avoid being impolite. "I was just feeling a little anxious, so I needed some time away from my family so I could clear my head."

Li Jun stared for a moment as he watched her take another piece. She was pretty intent on finishing the rest of the bison meat. He was glad. He would hate to see it go to waste after the effort he had spent killing it.