א אַחַר הַדְּבָרִים הָאֵלֶּה כְּשֹׁךְ חֲמַת הַמֶּלֶךְ אַֽחֲשְׁוֵרוֹשׁ זָכַר אֶת–וַשְׁתִּי וְאֵת אֲשֶׁר–עָשָׂתָה וְאֵת אֲשֶׁר–נִגְזַר עָלֶיהָ
1. After these things, when the anger of the king was like it was calmed, Achashverosh remembered Vashti, and what she did, and what was decreed against her.
In the Midrash (Esther Rabbah 5:2) there is a dispute regarding the word, “achar” (“after”). One view, that of R’ Ivo, states that it indicates immediacy, whereas the view of the Rabbis is that it indicates the passage of a significant amount of time. For our purposes, these two views allow for Achashverosh’s anger to be either natural or miraculous. If it were natural, it would take a long time for his anger to subside. If it were miraculous, then H-Shem would take away the anger as soon as it served its purpose of ridding Achashverosh of Vashti.