Holy shit.
Maybe realizing not every rural landscape is a living hellscape and not all families are like those he knows was what Reiji needed to begin to see the light. This, added to him coming to terms with Yuko's circumstances was necessary. The latter is reinforced by a draft for the originally intended color page for this chapter, but was rejected by editors.
Too bad he has to face the painful and hurtful truth that he is responsible for all this shitshow happening after having given up to his abyss. If he just had rejected Yuri, maybe nothing of this would have happened... but if i am honest, i think Yuri would have never given up and would keep confessing. Still, Nagi being at the ping pong club is Reiji's fault. The other painful truth he had to face: the person he still had some trust despite of being the worst adult is actually that crazy and obsessed with him in the bad way and would have done something that terrible.
Reiji has no time left to find Nagi. Let the final shitshow begin.