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

[Sai Jackal]

Which is how I felt, and based on what Robin has said, I felt that way because she initially never intended for it to happen.

I agree with what you're saying Chrischa in terms of, time spent vs what you actually give to the memory stone. However where we differ is that I think Fitz did make something of his life with Nighteyes. It may have been simple, but it was peaceful, and according to Robin what he had always wanted.
Personally Fitz felt betrayed by a lot of those people he had left behind, and to some degree or another had been a tool for all of them. Nothing from them comes without baggage. So I'm hardly surprised he never sought them out.
It isn't just Fitz and Chade being friends, it's Fitz the Assassins apprentice, and Chade his mentor/teacher. With Chade still expecting unyielding loyalty from Fitz. With Kettricken, she resolved to take his child, and pretend it was her own, taking her away from her life with Burrich and Molly. Even though we knew based on the Fools impressions of the future, that this would indeed kill Nettle. Then there is Burrich, with fitz's memories of Molly, even after deciding to not return to her, are we to believe after seeing Burrich and Molly fall in love that Fitz interrupts that? What of the life that Burrich and Molly had decided to have? To get married?
So the feelings of the memories or not, for me it seems quite certain much would have went as it did.

As for your opinions of Molly. I would say that Burrich and Molly were passionate about each other, based on the scene that Fitz witnessed between Molly And Burrich, I thought there was more than convenience to her feelings for him. I recall a scene where Molly told Fitz something along the lines of Burrich being the best thing to come out of those stables, and talking of how the women all found him attractive, it seemed very clear Molly shared this view. She also doesn't strike me as a Woman who loves someone because it makes her life easier, she appears much too stubborn for that.

Ultimately it doesn't make me feel as if there was less to Burrich and Mollys love, but instead, the ending made me feel as if there was less to Fitz's life.