... Hanners, Marten, and Dora are basically family to Faye. Really tight, close family and after that mess with her father, the seed of loss in her doesn't wanna be too far from them ... Faye seems to like comfort and familiarity now ...
Exactly, Faye hasn't particularly had an easy time of it, with her father especially, so the relative current stability, and closeness is likely to be something she'll value, and doesn't want to lose, even if she could be making more money. This may not be an entirely conscious thought, but it's likely that the thought of loosing any of that (and she doesn't
need to move, or change friends) is not going to generate a positive response, although it may start her thinking about things.
The others in the story aren't necessarily paragons of financial stability either, Marten and Marigold both have made significant expenditures, albeit on Momo's new chassis in Marigold's case which is slightly more sensible than Marten's instruments.
... And having that conversation in the middle of the night randomly ... Anyway, she'd probably irked because she wanted to know what Angus really wanted 5 years from now and he made a joke instead. ...
That was spectacularly stupid of Angus to refuse to answer her, when she replied in a reasonable, if not ideal way, to his question, and he then choose to make light of it when she asked the same thing.
... I'm actually surprised they've gone this long without having any kind of fight ...
They did start off with some minor fighting in CoD, albeit being Angus' way to introduce himself to Faye, and her natural tendency to be sharp towards all of the customers, and especially any who tried to be clever back at her.
Having said that, most people manage to occasionally do stupid things in relationships, and phrase things in a less than optimal fashion. I certainly have, and I'm sure most of us on here have as well. Doing and saying stupid things, especially when lying in bed, and possibly not thinking quite as clearly as when fully awake, is just one of those facts of life, and which you normally regret later with a "why did I say that?". It also makes for a more exciting storyline.
Interviewers use questions like "Where do you want to be in five years" and "What are your weaknesses?" because they should invoke a certain sort of thoughtful response, although this sort of question is used so much now, that all it really does is demonstrate whether you've planned for the interview by coming up with a suitable answer prior to the interview (I know I would). It's not really a useful question any more, and just suggests an interviewer without much originality in their planning.