Marian ramps up the psychological pressure on Leo to keep the lovers’ secret. The fact she keeps the bloodied handkerchief shows the strength of her feelings towards Ted. Once again, because of the reader’s foreknowledge based on the prologue, the tension in the story isn’t generated by whether or not there will be “frightful trouble”—but by when the trouble will come, what form it’s going to take, and what its consequences will be.