Nice too see see some originality
I liked the serious note on this thing. It was pretty original too. Nice texts, I can imagine what you felt like.
I could see you worked pretty hard with this and really tried to bring your thoughts up and make a enjoyable flash. I think you need some more practice in flash though.
The drawings where of different quality. The one whe nyou and your girlfriend is both in you It's painfully obvious that you have used a reference from one of the pictures.
Also there is no animation what so ever (exept for the darkening). That is not good. Allright, maybe animation just didn't fit to this animation. Animation isn't essesential for every movie, but ost people will loose their interest whne it's only a slideshow. It's easy, you can just make the characters hair move in the wind, just anything.
Music choice was overall good and strenghtened the emotions. However, I didn't like how the first song just stopped so abrupt. It would have been better if you jsut used one song.