Ending the story mid-sentence like this is incredibly jarring. I’d like to recommend that you try to edit these so that each scene, or part of a scene fits nicely within the confines of the 1,024 character limit.
I think you’ve got a fun story here, with a well developed, innocently awkward protagonist. A little more editing and you’ll have yourself a good set of fics going.

Alright, I’ll try to edit them. Do you have any suggestions on what to edit? I’m always afraid I’ll make the story worse if I do . . .

You’ve got two choices, either expand the scene or cut it back. In this instance, I’d cut.
Here’s a quick example: instead of “He glanced back up at her, and saw her mortified face,” you can use “He glanced back up at her mortified face.”
Little things like that will give you more characters to work with. Keep the important parts of the story, but just re-word a few parts. It just takes practice to get it right. I’m hoping that’s it anyway, otherwise we’re both in trouble. =P

Along those lines, one of my main reasons for reading and commenting so much is that by going through the process on other people’s ficlets, I hope to get better when it comes to work on my own.
Stephen King will tell you (and when he talks about writing, it’s a good idea to listen), that the only way to become a better writer, is to become a better reader. Read good stuff and bad stuff, eventually you’ll come to instinctively see the difference.

Wow that really helps! Thanks again!