According to marca Dani has signed a 3 year deal worth 9mill a year with psg.
http://www.marca.com/2015/03/11/futbol/equipos/barcelona/1426092316.html
I hope its not true but i wouldnt blame Dani for signing, thats a great deal for him.
How can you say that? Messi had the image of the match IMO, Him Banging the floor from frustation because he was trying but nothing was panning out, he knew it would be one of those games.
You don't rest Messi when you are one point back in la liga, even if your playing a subpar team at home.
Now, If barca can demolish Villareal on wednesday(something like 4-5 to 0) then you can rest messi in the second game.