HEADCANON : UNDERAPPRECIATION & UNDERUTILIZATION.
thinking about the " sudden " reveals in s2 that millie doesn't feel appreciated and.. it doesn't feel that sudden to me?
millie througout the series is very clearly depicted as the muscle of the team, as well as being quick-witted in some scenes ; a good example would be when shes fighting the mutant catfish in Spring Broken, where she confronts Verosika with her own flask right after said battle in order to blackmail her team into stepping down from their Demon Duel.
despite her show of strength and quick thinking, she's not thanked, which leads me to believe that this is the norm for her growing up since she doesn't mention being bothered by the lack of verbal affirmation even as a joke. along with seeing all her unnamed bothers in Harvest Moon Festival and given the implications in Hell's Belles -- where Sallie complains that she now has more responsibilities ever since Millie left the family ranch -- i'm lead to believe that our favorite powerhouse is the eldest of SEVERAL children, which already places her in the position of being a " natural " caretaker that puts their needs second to others.
and it makes so much sense why we didn't see this in the earlier season, back before they were really getting the business off of the ground. with their business growing and the stakes getting higher, Millie's feeling of inadequacy -- the feeling of being too much of one thing or not enough for another -- is no longer a small voice in the back of her mind, one that she can easily snuff out like she did back when her mother teased her about her freelance work.
they have more to lose now than ever, they can't be lackadaisical with their financial decisions anymore. Loona's now becoming more of a member of the team than ever, both inside and outside the office. they're becoming less of a rag-tag group of misfits and more of a true found family of sorts, and Millie doesn't want to lose it after all the effort they put into getting THIS far.
so when Blitz still hasn't confronted himself with the fact that the Bird Prince did a number on his heart and didn't take this time to reflect on his desires and need for a whole month -- AND hasn't payed anyone said month while impulsively spending savings on useless junk -- of course she's gonna be pissed that his personal life is bleeding into his work life, and in the worst way possible! Blitz has always been a person that's dictated by his emotions, and she draws a thick line in the sand when it starts interfering with their lives both inside and outside of work.
it doesn't help that the Bird is working with them now, and one of her closest friends has seemingly done a whole 180 in personality in an attempt to be partly as supportive as his daughter as his friends have been to him. while there's nothing wrong with being supportive of someone you care for, Millie starts seeing this new behavior and person as a problem when it starts changing the rules of the job and hindering their ability to do it affectively, even if it's indirectly, but ESPECIALLY when her own valid judgement and abilities start being brushed off or second-guessed when they haven't been before.
needless to say, Millie is certainly going to have some serious discussions whether or not canon is going to throw her out the narrative picture or not.
