Ben Affleck and Jennifer Lopez are perfectly aligned and in step with one another as they continue their romantic Euro getaway to celebrate her birthday ... and we mean that literally. TMZ's obtained footage of the couple strolling through the quaint alleyways of Capri Tuesday ... where they seem to have landed after a pit stop in Saint-Tropez over the weekend. As you can see, they were hand-in-hand ... with their team fully surrounding them.