My favorite
First, the negative part: It is a bit unrealistic that this girl would kill herself over such a brief relationship, no matter how lovely. Normally, in a situation like this the girls family and friends would have given their support which is a lifesaver for depressed people. But since none of that is shown, I presume there isn't any family OR friends? Also, very unrealistic. You don't want to be unrealistic when you are making flashes like these. Flashes that depict reality as it is, a bitch.
And then I presume you want to know why I gave full score despite the lack of reality? Narrating: PERFECTLY done. Mood: Melancholy as we like it!
Editing, Ability to see the different perspectives between the characters, quality, ALL very good :) My favorite flash.