‘Standoffish’ Sylvester Stallone writes his daughters’ breakup texts

Sylvester Stallone goes full Rocky on his daughters’ boyfriends. “My dad is a savant on the subject of our relationship lives — in so many areas,” Sistine Stallone mentioned on Paige DeSorbo and Hannah Berner’s “Giggly Squad” podcast Monday. “In a single space, he writes most of our breakup texts,” she revealed. Sistine’s sister Sophia…