yo bros, just read it.
this chapter has around 14 and 1/2 pages of flash back during college days (who said its high school days?) those 3 guys on spoiler is tennis club guys.
as expected the guys on tennis club is well.. flirtatious, during training they will try to "fix" female forms while showing lecherous face, cue shu showing up and glaring at the one who is "helping haruka" after they fled the tennis club, then shu said, haruka is always like that, which triggers haruka memory where shu is always looking out and helping here, then the smilling while crying face of haruka
after this, its several pages of flashback when they started dating, then shu proposed in ferris wheel and haruka accepted... then half panel of this page is the car sex.
next page haruka asked senpai for camera while fucking in car (btw its senpai's car) senpai asked what for? to show it to shu haruka said
i want shu chan to look at the picture more, then the surprised senpai face which has been posted earlier., thats it for car sex, and not it is not explicitly shown that the car sex took place near shu's work place, its a public parking space, most likely near their apartment (assumption), this took place at night.
then the next day, shu work with dejected face, then after work as he about to took off for the day, he received a mail from kawaii, she wants to speak with him at the office room 3, shu meet up with her, there she said, senpai, watashi, mitandesu
kuruma no nakade , okusan uwaki shitemashita (i saw your wife having affair in a car).
whoever said shu is having a break down is lying/exaggerating, shu loos like accepting it/indifferent. then next page is haruka fucking with senpai at shu's apartment, with divorce paper on the table.
and nope shu isnt rushing home either, the chapter was over after that.
so.. only around 3 and a half pages of sex scene in total for this chapter.