What I didn't expect was that his death would be so bloody pointless. He didn't die trying to save someone else's life or to protect the secrets of the Order. He died just so Voldemort could get control over the Elder Wand, which Snape didn't even have.
But at least he lived long enough to give Harry his memories so Harry would know the truth.
Snape's unrequited love for Lily surprised me, since I'm 99.9% sure JK said in an interview that he didn't love her. I guess there's nothing like misdirection. At least we know that Snape calling Lily a mudblood was something that slipped out in the heat of the moment. I'm glad that they had been friends, though, and I love that she called him Sev.
Between "Snape's Worst Memory" and Dumbledore saying Harry's personality is more like Lily's, I'm convinced that James was a jerk. Maybe Lily would have been better off with Snape.
I'm convinced that Deathly Hallows was JK's gift to the HPfanfic community. She's given us opportunities to save everyone that died and to explore what happens to the next generation. The fanfic writers aren't going to run out of steam for a long, long time.
I don't know how this will affect My Everything. I have three options -- continue as it is (ignoring HBP and now DH), start over, or abandon it altogether. I won't abandon it. I'll have to think about what to do with it.