SERIOUS ANSWER
What happens when your implants open a door to a world you didn't realize you could lose yourself in?
Katrina is indulging a dangerously addictive personality. Not just to the alcohol, but to the endorphin rush that her neural-links to I-RED's central databanks give her. She literally gets a 'high' from working, so much so that she sacrifices sleep, food, and socializing, just to work. The flowing river of
When she unplugs, she feels the heavy 'downer', so she drinks. Heavily, trying to drown that terrifying empty feeling that being alone in her own head gives her. She'll wander to a bar, order drink... and connect again. Because she's an addict. Because she can't help it. Because stepping out into reality is like going from flying an interceptor to swimming in quicksand. Because her mind is too slow, because she's perpetually drunk, because she doesn't want to face the headaches and reality.
All for the State. For Ishukone. For I-RED. For herself.
For One. More. High.
After all, with RDC's operational metrics running higher than ever, who's going to complain? Who would notice?