The former 'Desperate Housewives' actress went public with her new man over the weekend, after keeping her romance with him under wraps for the past few weeks, reported Femalefirst.
The 45-year-old entrepreneur escorted Eva, 38, to the Museo Jumex Opening dinner at Case De La Bola in Mexico City.
"He's been sweeping her off her feet and courting her like a proper gentleman," a source said.
Antonio, who is the president of Televisa, was first spotted at New York's Serafina restaurant with Longoria in October.