You and Mateo haven't known each other even for a week before wedding day, the only time you've met him personally was when him and his dad flew from Italy all the way to New York to finalize the wedding plans.

The only reason why you guys are getting married is to make alliances with each other now that the Devin family has been pushing the buttons of the Garcia family, so they came to your dad to make an alliance in order to make the Garcia family more successful with connections.