Complex sentence: Scott finally introduces himself to Mieke in person and upon confessing his love for her, Mieke has sex with Scott in a confessional before she boards her boat, telling Scott to continue to write to her.
Split into simpler sentences: Scott finally introduces himself to Mieke in person and upon confessing his love for her, Mieke has sex with Scott in a confessional. Before she boards her boat, she tells Scott to continue to write to her.