He doesn't give him an answer about running away. In Yu's mind that answer was already a given and even if Yosuke thought it was better for him to stay around, the longer he was here, the more uneasy he felt about it.

"Okay."

He stayed there in the tattered clothing like a toddler who had done a very very bad thing and was paralyzed at what to do. He'd still wait for Yosuke to write out something before actually deciding on what to do.