What happens to Ellie's bag and money when the bus stops for a break in the film, It Happened One Night?

When the bus stops for a break, everyone gets off for a few minutes. As Ellie smokes, Peter watches her. He sees a man walk off with her bag, and he chases him. He tells her that the man got away, but she doesn't know what he's talking about. She's upset that it's missing and she doesn't want him to report it even though all her money was in it. He calls her an "ungrateful brat."