Ramos was sent off for pushing Puyol in the face after the Real defender had scythed down a Barca player.
The Barca skipper insisted: "I went to defend a team-mate because I thought it was a very tough tackle [by Sergio Ramos].
"We have many friends in the Real Madrid dressing room, and there is no problem with that. Whatever happens on the field stays on the field.
"I have a very good relationship with Sergio Ramos, and the incident has already been forgotten. I have other things to think about that are more important.
"The win has given us a lot of confidence. The team has been very good, and now we have to continue doing well. We are a team with great players,"