I used to hate Real and was sympathetic towards Barcelona till around 2007. However, since then I have realized that both clubs are equally corrupt and make equal of official favour to remain in their esteemed position.
On a side note, the culture in Spain seems to favour winning sides more while in England there is seems to be a tendency to pull down winners and belittle their achievements (especially in football)
As for last night, I haven't seen a team surround a referee so many times for such trivial incidents. It started with Barcelona and soon Real realized that they too can pressure the referee that way. I guess disgusting is a pretty good description for the behaviour of the Barcelona team and the lack of sportsmanship on display last night.
Even if it a cultural thing, and people might have to avoid too much condemnation because of a relativistic mindset, there is no way one can claim to be normal and not condemn the display last night from Barcelona.
Real were pretty bad too, but it didn't seem that their plan A was to get a player sent off. Football-wise they were poor though (even though they only fell behind once Pepe was wrongly sent off).
My main is issue is not with the diving (i have come to accept it) but it is with the surrounding and intimidating the ref for every insignificant incident. It was as if I watching a poor Hindi serial (I have never managed to get through a whole episode) rather than a football match