I read the title and description and it just gave it away! Aww man! I liked this ending though I personally think these stories that turn out to just be nightmares and then have a deja vu of the dream at the end are slightly over used though it does add quite a lot of excitement.
I dunno about you guys but my dream/nightmares never really make sense to me after I wake up and think about it, and never have a huge elaborate plot. Aww man, I wanna cool nightmare now!