Of course now it's in their favor even though I don't really like it, but the fact that they really excelled in the first leg cannot be eliminated and now they will play at Camp Nou with an aggregate of 1 goal, this is clear to be superior for them.
Now it only remains to see how Madrid will react after the defeat they have received again and again from Barcelona. It would be great if they started to wake up and at least be able to prevent Barcelona from bringing a trophy, but if not last season's situation is like the opposite this season.
The first leg of the Copa del Rey looked too monotonous and it seemed that only luck saved Barcelona from defeat. What is clear is that in the second leg, Real Madrid must have a mission to surpass this thin aggregate so that they can advance to the final round. But it doesn't look easy considering that Real Madrid have to go to Camp Nou to play the second leg, even so I'm still optimistic that Real Madrid will be able to beat Barcelona.
I don't expect Real Madrid to win against Barcelona. Real Madrid is a really strong team. But they are not able to eat well against Barcelona. In the last 5 meetings between these two teams, Barcelona has won four matches and Madrid has won just one match. Moreover, since Barcelona won the first leg, they will be pressure free in the second leg. And they will only aim to draw the match. Jahrao Real Madrid is now very busy with Champions League matches. So the chances of beating Barcelona seem low to me.