Goals from Cristiano Ronaldo and Fabio Coentrao looked to have given los Blancos a vital win, but a late Juan Albin goal snatched a point for the visiting team.
However, experienced center back Ramos is adamant the team was just unfortunate to not secure three points after dominating most of the match.
"The draw today was not a matter of attitude, from the first minute we were looking for the victory," the 26-year-old told reporters. "Now it is easy to draw conclusions, and in football the result counts. Physically we're fine and the problem today was not a lack of attitude, and the coach may think the same.
"We've had luck in other games, but not today."