I'm in the first part of Bloodmarked and I really apreciate that even if these books are narrated in bree's point of view, it's not written in the way that make you think that she's aways right. When she argues with Sel, you can see why she made certain choises, but you can also understand why sel is mad.
Her choices put her life and the lives of others at risk, Sel's position was at risk because of the consequences of her actions. It's understandable that she wants to prove herself as Arthur's scion, especially in an organization that looked down on her, but she's not rewarded for being reckless.
Some books and other media portray their protagonists as moral paragons who are right even when their actions have negative consequences, but Bree is directly confronted by this. It's refreshing to read and adds further to her character development.
