This could be true. I could see Math being pretty desperate to get some revenge at this point because Diz will never fight him head up. He might have let it go if Diz just fell off the map, but instead Diz gets Cassidy & TMZ love.
Yes Math is a street dude, but is he really a stand-up guy? I don't know, I'm sure it's all good when you're the one punking people.