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
Considering that, from the bookmakers' point of view, Barcelona has approximately a 30% chance of losing points, based on your assessment, you can safely bet on Barcelona. But I think it's too risky. Even though Barcelona wins tough games (eg against Atlético Madrid) they have too many tough games - even against outsiders. Girona looks like a more “vigorous” team and Girona’s goal difference is at least a little better than Barcelona’s. I see no reason why Girona cannot put up a serious fight in this game or even win it.