Ahahaha. You're the first one to actually question those. I cannot say much, as that would ruin the surprise. But what I can say is that the first makes everyone happy, the second is a shock, and the third is a warm bit of horror and love~
If you figure it out, please keep it to yourself. I'd like to give everyone a bit of a surprise. >=3
I noticed a few errors myself when I reread it after uploading, but Mediaminer is horribly uncooperative with things. It took probably close to 20 minutes to get a working version uploaded in the first place. So fixing those wasn't exactly high on my priority list. I'll get to it though. >.<
Still, I'm glad you enjoyed it. =3
And I'm wondering who you are talking about. Yuuno didn't have any roommate. Are you talking about the person with whom he gained experience? Because that was Nanoha when they were together.