EJ:
I think she had only one thing on her mind. And it wasn't chopping vegetables or getting the facts right about the real Chakotay.
This could have been due to a build up of unchecked hormones that was initially suppressed by her nano probes. I mean, her Borg physiology easily makes her drunk. It is safe to assume that she can easily be effected on a hormonal level, too. I mean, who knows? Maybe there was an increase in pheromone levels by all the males on the ship or something. And her natural female drive just kicked it into high gear.
At least thats my 2 cents worth, anyways.