Chihiro got some interesting info out of granddad. Too bad Wanko had to ruin it by throwing a flower pot at him. It's nice that she gives Rea some of her old clothes, but knowing her, she's not going to accept Chihiro's relationship with Rea without a fight.
I do believe that last part wasn't in the manga, but it showed how strong Rea is now, not to mention something that will undoubtedly become important later on. Good to see that Rea is pretty much back to her old self again. Now she has to keep eating those leaves to stay sane, though Chihiro has to find a way to stock up on hydrangea leaves, as the flowers don't bloom all year and we've seen what happens when a zombie is deprived of hydrangea. And on top of that, he still needs to find a way to preserve her body for a long period of time.