And this is how it happened that just two weeks after they had parted, bravely trying not to show that they cared, “The Merry Hearts,”--or at least the Chapin House division of them, with the B’s thrown in for full measure,--met, one sultry July afternoon, on Mary’s big, vine-shaded piazza and, chattering like magpies, drank inordinate quantities of lemonade and iced tea and heard from the bride-to-be all the whys and wherefores of her impromptu wedding.