Space Platform by Murray Leinster

Nevertheless, the afternoon began splendidly. Joe dunked the bottled soft drinks in the lake to cool. Then he and Sally ate and talked and laughed. Joe, in particular, had more than the usual capacity for enjoyment today. He'd been through twenty-four hours of turmoil but now things began to look better. And there was the arrangement with Sally, which had a solid satisfactoriness about it. Sally was swell! If she'd been homely, Joe would have liked her just the same -- to talk to and to be with. But she was pretty -- and she was wearing his ring. She'd wrapped some string around the inside of the band to make it fit.

The only trouble was that Joe was occasionally conscious of the heavy weight in his right-hand coat pocket.