Jake Gyllenhaal was spotted having a cozy Sunday brunch with his latest gal pal, Alyssa Miller, at Sant Ambroeus in the West Village. “They were sitting close to each other, on the same side of a table, and reading the paper together,” a spy said. Perhaps Gyllenhaal was too enamored: He was seen later returning to the restaurant because he’d forgotten his wallet. Page Six asked Miller on Monday night about her “new boyfriend,” and she replied, “I’m very, very happy.”