Under these circumstances, the three Greek princes and Queen Marie of Romania decided to make an emergency return to Switzerland. Moved by the situation and probably pushed by his mother, Crown Prince Carol at the last moment decided to travel along with them. After being cold and distant to Helen during her stay at Romania, the crown prince suddenly turned very attentive to the princess. During the train journey, the two told their life stories to each other and Carol confided in Helen about his affair with Zizi Lambrino. Helen likewise told him of her life and of family matters, including her great grief for her brother Alexander's death and how she did not want to return to Greece now that her only real friend, her beloved brother, was dead. This opening of the hearts to each other had the result that Helen fell in love with the heir to the Romanian throne.