Indeed, so far Real Madrid has had a very difficult time winning the El Clasico match against Barcelona. Moreover, in the coming week, Barcelona will be the host and the support from the fans will flood the Camp Nou stadium. Coach Xavi and Ancelotti will again compete in strategies to achieve victory in this match.
If later Barcelona wins then it is certain that they will win the laliga title this season because they managed to beat their closest competitor, but on the contrary if Real Madrid wins, of course, as you said, the confidence for Real Madrid will increase and that can be a good motivation to win. consistent wins in every game.
This season they have played 3 times and Madrid won once, Barcelona 2 times.
In this case, for the 2nd Leg and to see from the condition of Barcelona, they are clearly the favorites. Apart from those who have won 2 times and their conditions in the domestic league are very comfortable, they also play at Camp Nou and we know how dangerous they are if they play here. But of course Madrid also doesn't want to lose again and again because this could make them even more belittled by rival clubs.