He said that "we did everything we could" which is obviously a lie. If they did everything they could, he would still be in Barcelona. There just isn't scenario where he will end up being PSG player if they made the deal earlier, like prioritized the deal before anybody. They were still fighting about the money, Messi and his father probably demanded such a high amount of money that it took longer and longer and now they couldn't finalize it, even they were down for reducing the salary. He even said he wanted to go not too long ago, but changed his mind. He prob already entertained the idea enough he said he was going to go, so it didn't even feel that bad in the end when it became reality. If he didn't shed a tear, it would have been comical so he had to. When the appreciation started, when they were clapping for a good minute then he was genuinely crying because, that's the appreciation. Of course that feels different compared to own feelings, because it's the emotions of someome else and you see someone being sad about your leaving, it's always difficult but in his personal note, im quite sure he's not that sad to actually go.