Keating and Roark meet and come to an understanding of sorts.
Roark will design the housing project for the joy of the work and the design challenge it poses (to make affordable and beautiful homes for lower income tenants).
Keating promises he'll fight for Roark's design and understands Roark's love for his work now—Keating will get credit but no joy from the process.
He shows Roark his paintings, and Roark is honest about them not being very good.
Keating's long-held desire to become an artist is pretty much dead in the water now.
Keating leaves, and Roark feels disgusted about pitying him.