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

[Narya]

In many ways, the same would be for me if I should find myself in a situation that would not allow me to hide any longer. I would have to face things. Maybe, like Fitz, I will one day have to have it all out in the open. On that day of reckoning, I would easily be able to take off exaclty from where the last confrontation had left...

As a stranger to you, at risk of stepping where I shouldn't, I want you to know that you are in my thoughts. I hope you be able to face what is troubling you sometime in the near future, while you both still have the option to do so. It can be very empowering.

As for the part about Fitz marrying his teenage love, in his 30s, it just happened to a friend of mine. She saw her highschool beau for the first time in about 15 years, and they fell madly back in love with one another, much to their mutual surprise.