So I guess I didn't understood the appeal of a dating game where the protagonist doesn't say what's in the box... until you read how he always undermine himself ! It's a nice little twist in the interest of the game, where what is interesting is not getting the girl, but just knowing how the protagonist will screw up next.
The art is well done and the music fit. Unfortunately, as mentioned by you the game was not finished and there is a hard crash at the end, but overall you did a good job for a proof of concept !