3, 4, and 5 for Kaliki!
Oooh, yay, it's been awhile since I've been asked about Kaliki!
Anyway:
3. Name one or more of their bad habits.
Well, top of the list is becoming too focused on her work to the point that she'll start ignoring other aspects of her life. She tries to be responsible, but in doing so so tries a bit too hard and can end up ignoring basic needs like proper food and sleep and keeping up with friends. She also finds it incredibly hard to relax and constantly feels the need to be doing something.
Most of her bad habits are entwined with that bad habit in particular, but other bad habits include being overly blunt/honest with people in situations that require a little more delicacy and perhaps being a bit too serious/intense even when she's supposed to be relaxing.
4. Any addictions? (Food, sex, drugs/alcohol, shopping, power/control, etc.)
Other than being a workaholic, no, Kaliki doesn't really have much as far as addictions go. Except for maybe caffeine or some other space-equivalent stimulant.
She does keep awfully up-to-date with romance novel series, though..
5. What is one thing they do that can negatively affect their relationship with friends?
Pretty much all of her bad habits listed above can negatively affect her relationship with people, but overall if I had to pick one thing it would be how she occasionally isolates herself. Even though her introversion in itself isn't a bad thing, sometimes she can take it to extremes and has to practically be dragged out to loosen up and have some fun, and even while out she takes a bit of coaxing.
Those who have been friends with her for a while tend to understand that's just how she is, but when it comes to newer friendships it can be a bit of a problem when Kaliki unwittingly hurts people in the process of putting her work above everything else.