Board Thread:Naruto Discussions/@comment-24048522-20191229052502/@comment-38812954-20200102030506

Definitely, there was absolutely no trigger for those feelings. Nothing was done or nothing was said

That translation is more telling me that the Ten Tails wasn't only the god tree but Kaguya's will incarnate with an set instruction to take back her chakra. She manifested the Ten Tails from the god tree with her will. With her will, and the immense power she had after eating the chakra fruit (Hope I make sense. As I barely do)

She never merged with the tree