"Who have you hurt the most?"
That would have to be a girl I knew named Suisei (or Jean, if you want real names :P). I liked her a lot, she was a really good friend, and we ended up sort-of going out a month or two after Naomi broke up with me. Well, I wasn't ready . . . so I ended up breaking up with her. I don't think she forgave me, and I've always missed her. We'd had a bit of a history - she'd really liked me, and had wanted to go out with me, but I was nervous and scared and unready, and that was just the last straw.
So yeah. Suisei.