The reason to it all is too lengthy, but Su Xiaotian, as he listens to these ladies collectively tell their entangled stories from each of their own perspective, he was able to boil their several hour-long storytelling to one simple idea.
That they were truly the closest of friends, and yet because of the draconic race's power that goes beyond what any of their families and backers can handle, even with combined forces, can handle, they caved in to power.
Not because of the temptation of being able to wield even just the tiniest portion of it, but rather from the fear of the possibility of this very power, the might of the dragons, being pointed exactly towards those they hold dear.
