The Heart is a Lonely Hunter Part 3: Chapter 4 Summary

Biff is working alone in the Café on a peaceful night. He's done a lot of decorating around the place and even has a flower display now.
He wonders about his future and whether or not he should keep the Café open.
Meanwhile, he listens to what's going on around him: a news report on the radio and his cook snoring in the kitchen.
Biff thinks about how much has changed over the past year or so.
He no longer has that same pull to Mick anymore now that she's more of a grown-up. He feels very lonely and starts to think of Singer and the mystery surrounding his life. Biff handled Singer's affairs, which were a mess.
Biff panics a bit out of loneliness and fear, but he quickly pulls himself together and gets ready to face another day.
And that's about as uplifting an ending as we could ask for in a book like this.