Esther 2:22, Question 5. Why does the verse use the word “vayaged” (“related”) in describing Mordechai’s reporting the plot to Esther, and “vatomer” (“told”) describing Esther’s report of the plot to the king?
Perhaps the verse’s use of different language describing two different reports of the same plot alludes to the Midrash Lekach Tov’s assertion that Mordechai communicated his findings to Esther through a messenger, whereas Esther spoke to the king directly.
Yosef Lekach says that the difference in language demonstrates that both Mordechai and Esther were both trying to give each other credit for the information, so their individual tellings of the event were naturally different.
The Maharal says that Mordechai just reported the facts of what he witnessed. Esther, on the other hand, reported the conspiracy, and also offered counsel.