CLEVELAND — As the shots dropped, the score widened and the head-banging Cleveland crowd screamed louder, threatening to rip off the arena’s roof, Kevin Love raised his arms and gestured for fans to do more. Usually, it’s the other way around. Shaking off two miserable games in Toronto, Love, whose two seasons with the Cavaliers have ebbed and flowed like Lake Erie’s tides, scored 25 points in just three quarters of Game 5.