Why do you think bud started crying so hard chapter 14bud not buddy?

Bud started crying in chapter 14 of "Bud, Not Buddy" because he was overwhelmed with emotions. He had been through a lot of challenges and surprises on his journey to find his father, and he finally found a sense of belonging and love with the band. Bud's tears were a mix of relief, joy, and release after all he had been through.