It's part of football, sometimes you win, sometimes you lose.
Now we might either win or lose the CL final. Losing sucks, winning is great, sometimes both happen.
We might meet again next season and maybe you win.
We, Inter, are not a stellar team, but a tactical system of play. Whilst against Barcelona the difficulty is to stop some great, unstoppable players, the difficulty vs Inter is stopping our system of play.
We don't have amazing stars and yet, surprisingly, that is our strength. It puts other, even more talented, teams at a loss when they don't know who they will exactly have to stop. No point of reference, basically. We are a shadow team where no player is a star, but everyone is a shadow who can surprise the opponent, while the team's organization excels.
I believe the above mentioned part is what some good Barcelona fans hadn't considered before the games.
PSG is more talented than us too, just like Bayern and Barcelona were. We will set up our tactical playing system and hopefully surprise PSG similar to how we surprised you and Bayern (on paper better teams)