I just think that the whole thing with Hela was ODD! I think they should have made it that she was Loki's mom. <<I was actually kinda hoping she would be his mom, too, but I think the sister thing works as well. It's new and fresh, so I'm not complaining.
“One day when we were kids, Loki turned himself into a snake, he knows I love snakes. So I picked it up to admire it, then he changed back into himself. He yelled “BLARGH ITS ME” and stabbed me”- Thor Ragnarok 2017