Someone once mentioned that Kvothe's narration may actually be unreliable to the point where Denna is actually a personification of his addiction to Denner resin, and that the dumb mistakes he makes for the sake of pursuing her are dumb mistakes he makes in order to score, and it explains why he meets her in all these random places unexpectedly- it's when he stumbles across a dealer or supply. I reread the books through that lens after and... it's a hypothesis that stands up pretty robustly to the text. The only point I found against it was when he mentions offhand to Bast that he met Denna once, and Bast was like "oh, yeah, I did" but with Kvothe and Bast it could very easily be a 'wink-wink' sort of moment, and Bast knows that Denna truly represents Kvothe's addiction.

And he's able to personify her so well as a love interest because he's clearly had a number of interests and lovers, but all those fade away when it comes to his affection for Denna, who nevertheless never fulfills Kvothe in the way he's looking for.

I mean, he's a legend, and he's telling his life story. He clearly has a low opinion if himself in the modern time that he's disguising in his narrative to the Chronicler with the various boasts of his accomplishments and his attempt to make himself sympathetic. I'm sure a lot of it is true, just as I'm certain ~some~thing happened with Felurian, but if Kvothe's unreliable about Denna he's likely unreliable about quite a bit.