Under The Scarlet Tree!

You come to a strange tree in what you believe is a Dream... With the tree you find a girl, and have an interesting talk. Why is this mysterious girl so weird? ̶W̶h̶y̶ ̶h̶a̶s̶ ̶e̶v̶e̶r̶y̶t̶h̶i̶n̶g̶ ̶b̶e̶c̶o̶m̶e̶ ̶s̶o̶ ̶e̶x̶i̶s̶t̶e̶n̶t̶i̶a̶l̶ ̶a̶l̶l̶ ̶o̶f̶ ̶a̶ ̶s̶u̶d̶d̶e̶n̶?̶̶