Yeah, it's cute, but a simple, single, and stagnate obstacle as the focus of a story loses its suspense and turns into frustration before long.
When everything can be solved by someone finally saying: "I like you"; "I like you, too"; The End; it kinda loses its interest. Throw us a curve-ball! Change things up! Do something more with the frosted glass! Don't drag this out if there's nothing to add! Misunderstandings become a predictable plot device and a tiring crutch for artificial drama!
The last couple chapters I had to force myself to read through. I have no more natural interest, or anything compelling me forward in this story, beyond a slim hope to cash in on the time I've already invested, but at this stage I no longer feel it'll be a satisfying payout. The only characters I'm still somewhat interested in are the mother and taciturn daughter, but they barely make any appearances let alone develop.
WHAT THE HECK?! THIS MANGA NEEDS SOME MORE DRAMA!!!!