After a few months of laying low, Mustang decides its time to get out for a bit. It helps that there hasn't been any sign of Gran for a while or anyone else they had to worry about.
He'd heard about the new bar/restaurant and figured that Riza deserved a little romance. A trip in a few days before, ensures that they have a private table for two out of the way and bottle of wine.
"Here we are" he says as he guides Riza into the Ninkasi.