According to assistant manager lori zarza, why did chris quit his job at mcdonalds?

From the text:

“When Chris finally quit,” Zarza admits, “it was probably because of me. When he first started working, he was homeless, and he’d show up for work smelling bad. It wasn’t up to McDonald’s standards to come in smelling the way he did. So finally they delegated me to tell him that he needed to take a bath more often. Ever since I told him, there was a clash between us. And then the other employees—they were just trying to be nice—they started asking him if he needed some soap or anything. That made him mad—you could tell. But he never showed it outright. About three weeks later, he just walked out the door and quit.”