OMG, so much quality here! It's rare to find such a good story which isn't cliché.
Just look at the plot: the story is short and go straight to the point, have a real motive, a problem to underling, characters that have some evolution, and an ending. By the way, it makes me think of "the Ending" by Gwa-in, as here this webtoon deals with a point of the relationship that is not the beginning, but issues that two people may deal with after the establishment. Then the subject is not those awkward and hackneyed times we can find in manga about falling in love; but deep-rooted issues that dating people have. Feelings were here before the story start, so yeah, we get easily moved.
I saw some readers complaining "what, how could the husband not know her phone number, why didn't he try to contact family, what didn't he try social media, gnagnagnagna..." First of all, a lot of us don't know our relative's phone number. Then, it's not the point here. We don't care about that, we don't care about how the husband and his stalker get to know each other, we don't know a lot of things and it's totally okay, we don't need to know them to understand the story. On the contrary, it creates an atmosphere that underling the relationship between the characters; and all that imprecision or those things that couldn't be real make me feel like it's a traditional romantic story, almost like a fairy tale.
So, I really liked that vague and unrealistic background which accentuate the real feelings brought by that webcomic. Feelings, emotions, and characters. I don't understand why the characters are so badly criticized, they look the real and none of them is naughty. It's at once time their fault and not their fault if their couple was precarious. And more than anything else, they are both totally understandable. They are a lot of people like them, even if they don't realize. The boy just have is own personality, he didn't want to hurt her, he didn't realized that he hurt her, he didn't feel the necessity to act more romantically or to take into account other people's life. But thanks to what happen, he changed, he realized what was wrong in his behavior, and decided that he wanted to be differently to keep his wife close to him and to make her happy. That was this story's goal: the show the trouble of a relationship and how to overcome them. Same for the girl: she acted on impulse, but could she be blamed for not controlling her feeling when such an incident happen? Yes, she could have acted otherwise, but what she did was understandable.
Conclusion: great story that seems like a fairy tale (short, honeymoon, romance, Italia, moral of the story).
(The epilogue was kinda strange, I agree. Especially the last sentence, it was sad isn't it?... I don't really get what the author wanted to say here)
There is really a "bad art" tag here? Whatever you liked or no the story, the art is so unique and Yamada Akihiro s renowned and acclaimed.
(Especially when you see other webcomics with mainstream style tagged as "beautiful art")