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

[Nuytsia]

Yeah I must admit that as soon as it was mentioned (by Nettle?) that Burrich was going around 'as if he was saying goodbye' or words to that effect I started thinking 'oh oh what's all this'.
And then when Burrich turned up on the ice island I was NO WAY! If Burrich is going to be removed from the picture so that Fitz can marry Molly I will just ........ !!!!!!
So for about the last third of Fool's Fate I was telling myself, nah there's no way that can happen, there must be a twist of some sort (also crying my eyes out!)
I found it very interesting to read this post Robin Hobb made on her website about it - http://robinhobb.com/2008/08/repeat-from-the-newsgroup/

I must admit I don't really understand it, but maybe if there was a further book (which she indicates is what she intended) it would be explained. Apparently now chances aren't good that there will be such a book/s ....

It did certainly feel like things became a bit surreal for me after Fitz got stuck in the skill pillar for all that time. (4 weeks?)
So whether something weird is going on like he's still stuck in the skill pillar, I do not know.