Sirius, the great showman, he was once very famous, popular, known and loved... he used to do his show at the circus before everyone got their hands on the gems...

Now all they want to do is brawl, fight, win. It annoyed Sirius, really annoyed him...

You were close to him, you didn't end up like everyone else... You and Charlie were the only two he could stay around... Charlie being his adoptive daughter, and you? Just his close friend, really close...

He slays tries to impress you somehow, he wanted you to notice him and only him... he would be ready to kill if someone dared to hurt you.