Dutchman Braamhaar awarded the slick Spaniards a second-half penalty converted by Fredi Kanoute and also sent manager Arsene Wenger to the stands as the Frenchman became increasingly frustrated with the theatrical antics of the home side.
"I don't like to talk about the referee but he made things more hard for us," said the Gunners' stand-in skipper.
"Everything he did was against Arsenal but when you go away it is always like that. I was also getting really upset with the captain. When you try and talk to him he didn't listen. He was really arrogant as well and didn't want to talk to me. I don't know why."