It was not just another relaxing afternoon at The Ivy for J.Lo's hubby Marc Anthony!

The singer dined at the hotspot on Wednesday and, upon leaving, a coupla photogs asked him if he and Jennifer Lopez were breaking up... in Spanish. And apparently, Marc got pretty pissed and yelled back at them... in Spanish.

See if you can figure out what's going on in the vid below!

Sorry about it, Marc!