Another interpretation: "and He built" - this teaches that the Holy One, blessed be He, built Eve in the manner of a storehouse is built. Just as a storehouse is wide below and narrow above in order to hold the produce, so a woman is wide below and narrow above in order to bear the child. "And He brought her unto the man" (Genesis 2:22): this teaches that the Holy One, blessed be He, became best man to Adam. From here the Torah teaches proper conduct, that a great one should act as best man to a lesser one, and let it not be an offense in his eyes. And for the one who says He created him with two faces, which of them went first? It is reasonable that the man went first, as it was taught: a man should not walk behind a woman on the road, even if she is his wife, even if she is his sister, even if she is his daughter. If she happens upon him at a bridge, he should move her to the side; for anyone who walks behind a woman on the road will not be cleared from the judgment of Gehinnom.
God Builds Eve Like a Storehouse and Serves as Best Man
Yalkut Shimoni on Torah 20:9
דָּבָר אַחֵר, "וַיִּבֶן", מְלַמֵּד שֶׁבְּנָאָהּ הַקָּדוֹשׁ בָּרוּךְ הוּא לְחַוָּה כְּבִנְיַן אוֹצָר, מָה אוֹצָר זֶה רָחָב מִלְּמַטָּה וְקָצָר מִלְּמַעְלָה כְּדֵי לְקַבֵּל הַפֵּירוֹת אַף אִשָּׁה רְחָבָה מִלְּמַטָּה וּקְצָרָה מִלְּמַעְלָה כְּדֵי לְקַבֵּל הַוָּלָד. (שם כב) "וַיְבִיאֶהָ אֶל הָאָדָם", מְלַמֵּד שֶׁנַּעֲשָׂה הַקָּדוֹשׁ בָּרוּךְ הוּא שׁוּשְׁבִין לָאָדָם, מִכָּאן לִמְּדָה תּוֹרָה דֶּרֶךְ אֶרֶץ שֶׁיֵּעָשֶׂה גָּדוֹל שׁוּשְׁבִין לַקָּטָן וְלֹא יֵרַע לוֹ. וּלְמַאן דְּאָמַר דּוּ פַּרְצוּפִין בְּרָאוֹ הֵי מִנַּיְהוּ אָזַל בְּרֵישָׁא, מִסְתַּבְּרָא דְּגַבְרָא אָזַל בְּרֵישָׁא, כִּדְתַנְיָא, לֹא יְהַלֵּךְ אָדָם אַחֲרֵי אִשָּׁה בַּדֶּרֶךְ וַאֲפִלּוּ הִיא אִשְׁתּוֹ וַאֲפִלּוּ הִיא אֲחוֹתוֹ וַאֲפִלּוּ בִּתּוֹ, נִזְדַּמְּנָה לוֹ עַל הַגֶּשֶׁר יְסַלְּקֶנָּה לַצְּדָדִים שֶׁכָּל הָעוֹבֵר אַחֲרֵי אִשָּׁה בַּדֶּרֶךְ לֹא יִנָּקֶה מִדִּינָהּ שֶׁל גֵּיהִנֹּם.