The ending doesn't make sense? Spoilers Farseer & Tawny Man

[joost]

Kettle used the Skill to prolong her life. But as far as I understood it, it doesn't make you younger. So you'll be stuck in an old body for a very long time. Not something to look forward to.... Nighteyes was offended because he understood (better than Fitz) that dying is part of living. Without death, life has no meaning. He saw little difference between dying and letting your soul live in your bonding partner, and skill-healing. Both are unnatural ways to prolong life.

Fitz added the superficial scars mainly to avoid questioning, but also because he felt some of the scars were part of who he was.

The fact that Fitz never learns from his mistakes is pointed out several times by the Fool, by Burrich, by Verity, by Patience, by Molly..... Well, by almost anyone .