Doesn't it SURPRISE you

I finished reading Harry Potter and The Half-Blood Prince the other day. I have never read or watched the films before now and I was surprised to find that i blubbered like a baby three times ..during Dumbledore's death , When I knew he wasn't coming back and at Dumbledore's funeral..I don't understand why I cried if he is merely a fictional character but im sure it isn't just me..right?