>>97794436Her behavior being different can be attributed to different circumstances.
>Ruby flashbackShe's in her element, in command in the middle of a war, dealing with an underling's failure. While her exact tone in the incident is hard to tell because Garnet was voicing her, unless she's outright lying its safe to say that she did in fact order Ruby's shattering.
>the palanquinShe's in the middle of mourning, got a hoarding habit after the shattering, and found something new to hoard.
>the trialShe wants revenge, but while Yellow wants to immediately kill Rose and move on, Blue wants to savor it and get answers about the things that have been bothering her for thousands of years.