Diaby red card cause humiliate to Arsenal

It is such a tremendous game between Arsenal and Newcastle at St James Park. After leading 4 - 0 and just 1 goals conceded this year, Arsenal defender conceded 4 goal only in half an hour. It is happen after Abou Diaby sent off in 50 minutes. Without holding midfield and Johan Djourou replace because off injury something magnificient happen. The miracle come especially after Arshavin replace by Rosicky. After being denied goal because offside, Newcastle struggle and get 4 goal. That's make history. I don't think it is history. Arsenal always get trouble like this...
Yes, I'm Arsenal fans and it make me frustrated..