The Interloper (1918)

A railroad owner's son, Paul Whitney, visits the Virginia plantation of Jane Cameron hoping to persuade her to grant the railroad a right-of-way through her land. The two fall in love and marry, but after Jane moves into Paul's home in the North, she discovers that he and his family still idolize his deceased first wife. While Paul is away on a fishing trip, Jane learns from his friend, Edmond Knapp, who is infatuated with her, that he and Paul's first wife had carried on an affair. Jane forcefully rejects Edmond's advances and on her way home, decides not to disclose to Paul his late wife's infidelity. Paul returns home and tells Jane that she is the most important woman in his life.