I was reading Mishneh Torah, Issurei Biah, Chapter 12, where the RAMBAM says:
עַכּוּ''ם הַבָּא עַל בַּת יִשְׂרָאֵל אִם אֵשֶׁת אִישׁ הִיא נֶהֱרַג עָלֶיהָ וְאִם פְּנוּיָה הִיא אֵינוֹ נֶהֱרַג
When a gentile engages in relations with a Jewish woman, if she [the Jewish woman] is married, he [the Gentile] should be executed. If she [the Jewish woman] is single, he [the Gentile] is not executed.
My question is: Since the Gentile would be executed, if the Jewish woman is married, what is the punishment for the Jewish woman for engaging in relations or vice-versa if it was a Jewish man engaging in relations with a Gentile woman?
Note: I should add that I am not trying to justify the sin of engaging in relations outside of marriage (as someone in the comments tried to insinuate), rather, I'm merely trying to find out the punishment a Jew would face in such a situation, since it seems the punishment for a Gentile is different to a Jew's.