They were high school sweethearts and she thought they’d be together forever. But Alex Maddox’s dream wouldn’t last forever. She got the call in 2018 every cop’s wife dreads: her husband, Chase Maddox,  was shot three times  while trying to serve an arrest warrant in their small town of Locust Grove, Ga., and died on the way to the hospital. “It was hell on earth,” she told The Post. “It was my worst nightmare come true.” Four days after her husband was killed, Maddox gave birth to her second