PITTSFIELD — Ahmed Ismail’s bride, Michela, had tears in her eyes, but not necessarily because of wedding emotions. Tear gas and worse filled the streets of Cairo when they got married. Ismail, from Giza, Egypt, and Michela Tagliapietra, from Lenox, met in 2010 when Michela and her mother toured Egypt’s archaeological treasures. Mom and daughter stayed at the hotel where Ismail worked. Ahmed and Michela fell in love and kept the relationship going between the city of the Great Pyramids and the Berkshires.