oh god

My Brother is upstairs on the phone crying
How do I deal with this?
I'm so used to being  the one who cries for everyone's sadness.
But what do I do to help when I don't know how?
So I'm just trying to give him privacy when all I want is to run up there and hold him,  protect him and kill whoever dared make my brother feel so low.
It's all so disorienting because as we get older it seems my brother becomes more vulnerable while I hold in more and more emotions in order to be strong for others. I really don't like it. I'm used to him being the strong one, the protector.
I just wish I wasn't so scared to ask him what's wrong.
So scared that he'll push me away and start to inflict his pain on me instead.
I wish I was the one hurting instead of him.
I wish he would tell his girlfriend to deal with her problems instead of making him share them. Share problems that have nothing  to do with him.
I hate this.
I miss my old brother.