At the end of Fritz Lang's 1924 silent movie Die Nibelungen: Siegfried, when Kriemhild enters the minster, she sees that Brunhild has commited suicide at the corpse of Siegfried, calmly remarking
Tell king Gunther my brother, the queen of Burgundy is dead!
The reasons for which I don't entirely understand. Now of course there are millions of differing versions of the Nibelung-legend and some in which Brunhild indeed kills herself after Siegfried's death. Yet, those are the versions where she shares some kind of loving bond with him (to which the poem, the version nearest to the movie, doesn't belong though), while in Lang's version she hadn't any feelings for him other than disdain and hatred (and was in fact the one urging Gunther to kill him). She is also depicted as an inherently strong character and remorse doesn't seem her trait, as also shown in her taunting of Gunther for making him betray his friend. So what was the reason for Brunhild to commit suicide right in front of Siegfried's layed out corpse?