She’s a straight-up villainous character who isn’t “crazy” at all.
And I mean that both in the real sense of having mental dysfunctions and in the Hollywood sense of “evil, but irrational and senseless about it.”
Everything Hela is and does makes perfect sense for her and for the world she was raised in. She was born into a bloodthirsty society and was raised to be Daddy’s little warmonger. She was Odin’s executioner and she helped him conquer and destroy and empire-build. And when the day came when Odin decided he’d had enough blood and wanted to stop, Hela shrugged her shoulders and said, “Nah, I’m good as I am.”
That she then raised her banner against Odin when he tried to suppress her should really have come as no surprise to Odin or anyone. Hela is exactly what he raised her to be, and nothing about her is irrational or senseless any way. It’s merely that her priorities and values – all perfectly internally consistent – happen to be utterly inimical to our heroes, the civilians of Asgard, and the rest of the universe.
I know we are all talking about sugar daddy Grandmaster but I do love the idea of Loki constantly slithering out of giving him any sugar and Grandmaster just thinks he’s playing hard to get and tries harder and idk why but that scenario is just so funny to me.