Which character in Part 2 encourages Siddhartha's change?

When Siddhartha meets Kamala, a courtesan, and quickly falls in love. Kamala, on the other hand, quickly convinces Siddhartha to give up the simple clothing of the ascetics and dress like a man of weath. She also helps Siddhartha get a job with Kamaswami, a rich merchant who lives in the town, after which, he becomes a successful trader.