Jaeger's been away from Anvard for a while, and while he's fine out in the wilderness, there certain things he starts to miss. So, he goes back into town for butter, and sugar, and sex. He's kind of a sex tourist: he doesn't care about Anvard's laws or social conventions, and he can always pack up and leave if things get uncomfortable.
Jaeger's encounters (not all of them sexual) with various women in Anvard are each an interesting story. I think each is a reflection of an aspect of Jaeger's own character: his mother issues, his con man habits, his unexplained compulsions, his capacity for violence, etc.
The story ends on kind of a sad note, with a cameo from Rachel and the rest of the Lockhart/Grosvenor family. You get a strong sense of a world of people who are all damaged to varying degrees.
The one false step in this story is when Jaeger has a fling with a woman who has some kind of eating disorder, and he starts lecturing her about, "You'll never be thin enough." Public service announcements about eating disorders or anything else seem wildly out of character, not to mention a touch hypocritical.