Yeah, well, if what he says is true, he's got reason for that.

[He takes his own drink, wondering where to even start.]

Our parents split when we were three. I always knew I had a brother, but I guess he just... forgot about me as he got older. And our mom never mentioned me. No surprise there...

[The last part is under his breath as he takes another drink, frowning out at nothing.]

I don't know why he's got such a big chip on his shoulder though. I get being mad that he didn't know, but this is something else.