Wow, romance this early and before the school arc, nice. You don't see that everyday.
Yeah, after the kiss and those last scenes I thought that this feel the end of the adaptation. Still to early to be completely safe imo.
We get a reminder of Lily regretting almost every ch, I don't think she has a conclusion. I would say Tsubasa and Lily are the ones with more chances, and pretty close one.
She is almost a teen, she isn't 4 yo, it's weird to shower with a kid of that age. I don't think it's embarrassment, it's just weird and hard to justify.