They will try to beat each other and get 3 points. Girona want to stay away from Barca and Barca want to get closer to staying on the path of the La Liga champions. But mentally, I feel very confident if Barcelona are able to win and the worst result is 1 point. Girona are going strong but I'm not pessimistic about Barcelona. It seems that there is only a 10 percent chance of Barcelona dropping points.
Source: google.com
If Girona beats Barcelona, they will continue their amazing underdog adventure in La Liga. If Barcelona wins against Girona, they will contribute to break the amazing form of the underdog. They will be like rescue La Liga from Girona and also will help themselves to continue the race with Real Madrid if not possible to reduce the gap against Real Madrid.
Girona have nothing to lose and they will play their big match against Barcelona with all energy, ability and pride they have. This season is already a magical one for Girona even it has yet ended and they even did not achieve anything in this season.