[The Pizza Man]

My Brother just figured out that his girlfriend cheated on him.
He is acting like he is going to die.
I can’t understand what I’m supposed to say.
On TV I hear people saying
“She’s a ***** you should leave her.”
But even on TV that doesn’t help and I have a feeling that really wouldn’t help because he loves her a-lot and has never said ANYTHING bad about her.
My mom is telling him about what she did when her Fiancé cheated on her
I can’t tell him I’ve been through it because I never even had a girlfriend to have possibly cheated on me.
I generally don’t get emotionally involved with people but the one time I did I was going to ask her out at the end of the school year but when I went to talk to her she was kissing my friend.
I don’t know if that is a comparable situation because he seems really mad if I even try to help.
I didn’t know what was wrong I thought he was sick until he actually told me what was wrong.
What am I supposed to say there is blues music playing really hard but when I told him to turn it down he got mad.
What am I supposed to say?
I am really confused.