Why does it all happen to me?

..."Hey, I can help you, if you will let me and tell me what happened, wh-why you are so angry, please, tell me,"I said, while I was walking towards him in fear, because I had no idea what had happened to him.
We were standing on his balcony, he was standing with his back towards me and I could tell by his body-language and his constant swearing, that he was really angry, he never was that upset about anything and it truely scared me to see him like that but I really wanted to help him, so I was willing to try my best. As I was beside him and was about to lay my hand on his shoulder,
he suddenly turned to my side and I took my hand back, I never saw something so intense in anyones eyes, it was anger and sorrow. Yes, it was such a deep mourning and that made me worry even more about what terrible could possibly happen to put him in that mood.

But I wasn't able to think any longer as he started to scream at me with such an anger,"You think, you can help me?! Then make my mum be alive again! You don't even understand, what it's like to loose somebody that close! You just don't understand, because you have everything. First, my dad and now my mother, that is not fair!," I stepped back and felt tears building up in my eyes as I was about to cry. How could he say something like that and just don't know any better. I was sorry for him, I really was. I knew how it felt to loose somebody that close but he was not allowed to talk about what a "perfect" life I had when he just didn't know. He was judging me, though he had no knowledge, no right to do so.
"How dare you to say something like that. Oh, I don't know any better?,"I whispered...