Wow. Great post. I thought that this sorta thing was kind of unique.
I just went through the same six months. She was totally infatuated with me for the first year of our relationship... and I just started taking it for granted, and now she's gone.
Sucks, but I'm just glad she finally ended it and woke me up to the fact that we just didn't enjoy being together anymore.
Oh well. Thanks for the thread, makes me feel a little less alone!