This reminded me of "Fatal Relations", that classic japanese porn game where plot climax involves urinating on someone's face. And here we have a plot climax that involves masturbating in front of someone. lmao
Unfortunately, while I get the author's intentions, everything is simply happening way too fast in this manga. The raped-in-bathroom stall girl was bad enough(what with going from "imma kill your baby" to "okay I won't, please help the man who told me to kill your baby" in ONE CHAPTER, and now again from "i won't kill the baby" to "imma turn myself in" in ONE CHAPTER) but I always treated her as a side story anyway.
But here we have the main character, a woman with supposedly years worth of emotional issues, overcoming them all in... what, two chapters - at most two days of in-manga time - spurred on by... absolutely nothing.