I have to say that when I am extremely depressed sometimes almost suicidal, I go back and read comments like this. I re-read the one you wrote for me in my Snarry_games video dozens of times.
Seriously, I think you've given me back more than I could ever give you, and you probably didn't even know it.
I really wanted this to put forth the idea of a future for both of them when neither had really considered having one before. Snape is resigned to give his daughter what he never had. He's changed for her, and he's willing to let go and be someone he'd never considered before.
Harry is just then realizing that he actually might have a purpose in life beyond defeating Voldemort.
I hope I can get my snarry-a-thon thing done in time. ;_; Right now, I'm really swamped.