Yay, Satoru-kun finally accepts Makoto!
It seems the underlying tension between Satoru and Natsumi was all because Natsumi was an immature brat before. But so was Satoru! He just let Natsumi get the brunt of the tension in the family. And even though their relationship with their parents got better, the tension between the two of them stayed the same.
It's a good thing Makoto pushed the both of them to be honest with each other. Now if only he can be honest with Takeshi, everything will be fine!