Well they wiped all the social groups, and I just never remade it, that's all. :3
Oh God yes, that happens to me. Mostly with manga, though. FMA is a monthly one, so it's really hard to remember what exactly happened last time.
The thing for me is not wanting to wait in suspense for a long time. Lol, even waiting a week (like for FMA Brotherhood and Dragonball Kai, even though I've seen the originals) is bothersome now that I'm spoiled with having watched entire series at once. XD