Two scoops. Two straws. Two sippers. When shared, the simple milkshake, stirred and whirred and blended into frothy bliss, has been the basis for many a romance. Eyes meet eyes over a bright red cherry. Grins grow wide with whipped cream mustaches. Heartbeats quicken with the last noisy slurps. Whether in a classic fountain like Central Drug in Bessemer City, or at Mike’s on Main in Hendersonville and Pike’s in Charlotte, where soda jerks mix ice-creamy concoctions, love — and nostalgia — is still in the sweet-smelling air.