Ah!! I have a theory about her connection to the Uncategorized Fractal! And it’s sad as fuck.
As a progeny she studied at Rata Sum, but it “didn’t work out”. Her friends Greeza and Chibb were Inquest technicians at the Thaumanova Reactor, but it is not known if she herself is affiliated with the Inquest. At some point, she “lost” her boyfriend to the Consortium.
…
The fractals were marketed as a Consortium tourist attraction, but Dessa denies any connection to the Consortium and becomes angered when they are mentioned.
When Dessa entered the asura gate back to Lion’s Arch, she immediately reappeared in the Mistlock Observatory with no memory of the previous events, revealing that the observatory is subject to the same rules as all the other fractals, and that Dessa is just as locked in the same loop as all the other creatures in the fractals.
(Wiki)
So! That’s three big facts about Dessa. She’s affiliated with the Consortium yet she’s not. And she’s permanently caught in her new reality, that being her lab and its extensions into other parts of the Mists.
We don’t know how old the Consortium is iirc, but given how much they’ve been able to build and such, I can only assume that they’ve been long enough in years to build enough money and power that they could do things like establish a tourist resort, get a large office in L.A., etc etc.
So my idea is this: Dessa and her boyfriend left Rata Sum because her ideas about the Mists and wanting to build the Observatory weren’t working out for whatever reason. She approaches the Constortium about funding the Observatory, and they put up the money for it if she’ll help them make it some sort of theme park. She agrees because she has few other options to keep her research going forward. But something goes very wrong with one of the Fractals. Maybe they don’t realize the danger of it yet, maybe it was just a freak accident. But in any case, her boyfriend becomes trapped in the Fractal, caught in the loop, and seemingly the only person who survived it.
Raving Asura: Breach! Broken! Falling! Screaming! Dying!
Raving Asura: I couldn’t save them. I heard them all. Pleading. All gone. All on my watch!
“All on my watch” seems to imply that he was involved with a job somehow. Building the floating city? A krewe? Or in investigating a new fractal that turned out to be more dangerous than it seemed. Notice that Dessa knows which Fractal you’re in the second you land. She’s familiar with it, and immediately gets emotional and distances herself from it.
Dessa: You’ve landed… I…need to go. I’m sorry.
Dessa: I…I apologize for leaving you like that. Just…never mind. Keep progressing. You’re getting closer to the local instability.
The Consortium is notorious in-game for being pushy, demanding, and putting money over people. It wouldn’t surprise me if they were more interested in getting results than the safety of their research krewes. If it is Dessa’s boyfriend in the UC fractal, then it would explain why she describes her boyfriend as being “lost” to the Consortium. Lost to their disregard for life and their gluttony for profits. She hates them now, but because she’s trapped in her Fractal loop, she can’t stop them from marketing her lab as a tourist destination, and she’s basically forced to watch adventurers kill him over and over again as part of their “tour”, possibly reliving it for the first time each time we do because of her Fractal loop.
And she can’t save him, because he’s trapped as she is now, each one stuck in their pocket of reality, cycling through it.