Does Fitz find true happiness? [Spoilers]

[Liquid Ice]

No, I don't think he found "true happiness" or at least as happy as he could have been. If he found true happiness then the end of fitz tale would have been bordering a fairy tale ending. But at the same time what Fitz wants and what Fitz actually needs would be two different things. Fitz true happiness may have led to disaster (which is why the fool left). Him and the fool will be something he always reflects on and feels sad about, but at least he isn't dead!

I like to think that Robin left us clues to create our own ending. We know that the Skill lengthens life. Kettle lived over two hundred years, and Chade (who was looking like dying of old age at the start of Tawny Man) is still lively and strong, likely due to taking up the Skill. I believe that The Fool left Fitz so that he could feel a measure of the contentment that he always longed for with Molly. Then, when Molly dies of age and Fitz is still in his prime due to being Skillmaster, The Fool will return. Their friendship can infuse their lives with love once more and they can live out their lives together, as the only people who truly understood one another.

I thought the Skill only lengthens life if the users chooses to? You could be aging but if you suddenly thought "Hey I don't want to die" you would freeze your age to where it was and stay like that. I believe Chade became lively and strong because he got Skill healed, not so much because his life was frozen in time like Kettles was.
Also I doubt Fitz would want to stay young. It'd be hard to be in love with someone and let them age and grow weak while you stay strong. And fitz doesn't seem like the kind of person who'd live forever just for the sakes of it.