From the standpoint of morality, you're absolutely right, but from the standpoint of internal character logic, you're missing the fact that Michelle herself a) obviously doesn't think that she did any wrong to Peter, and b) obviously thinks that Peter did an incredible wrong to her, and yet, in spite of being so angry over her own violation that she's ready to kick him out, he doesn't even need to APOLOGIZE to her in order for her to spread her legs for him. From her own perspective, this is tantamount to the ugly old trope about the woman who's raped, but decides that she liked it after all. It's misogynistic because she considers herself horribly wronged, and yet, she requires absolutely no repentance, or even respectful treatment, from Peter in order to give up her pussy on the kitchen floor. As another poster said, she's reduced to a vagina with legs, whose "strong bitch" exterior is nothing more than a front for her total lack of self-respect.