What is the theme in Bus Stop by William Inge?

Change and transformation is a theme in the book. Initially, Bo is a loud and aggressive man; yet eventually with the help of Virgil and Cherie, he begins to mature into a more sensitive, tender one. On account of his inexperience with women and his insecurity with himself, he does not know how to relate to people. His love for Cherie transforms him: only by losing her does he find the courage to confront his limitations and move forward with his life. Only then does Cherie accept his love.