I agree, it's weird, she just met him, she should not act like Reflejjo who did his research.
Obviously it's because Reflejo's overwhelming presence is bending the narrative itself, all for the purpose of his return on the third arc.
That same overwhelming influence is what made Kaiser attempt to instigate a final battle with Baam the moment he stepped his foot on the Name Station; an urge that could not be ignored bestowed upon her by a being that cannot be contained by thought...
Truly, Reflejo's power knows no bounds.
No bounds indeed...
I dare say even that the demon plaguing Baam's thoughts is, in fact, yet another manifestation of Reflejo's loathing of the Irregular Wave Controller, hoping to take away what he strove for so long in order to make him suffer and ultimately have him give it everything he's got in the final battle that will begin...
After all, one must fear the man who has nothing to lose and Reflejo must conquer that fear...
As it was written, thus it shall be.