Betting on Girona is very risky, especially now that Barcelona is in a comfortable condition to win the match. I don't think I will risk betting on Girona in this game.
Barcelona have a good record in the La Lila, they have kept 20 clean sheets this season and even with three changes that the Barcelona coach have made to the team, they will still win. Girona have never won Barcelona, the players may want to change that history in this game and will put in their best, but regardless I do not think they will be able to win Barcelona. If you bet on Barcelona to loose, you are very likely to loose tonight.