for her, Nadine's feelings for him are much stronger. They attend a benefit at General Hospital, where Nikolas sees a mysterious woman named Rebecca who looks just like Emily. While the benefit is going on, a biotoxin is released and the hospital catches on fire. Nikolas saves Rebecca, though she tells him to stay away. Nadine breaks up with Nikolas when she realizes how attached he is to Rebecca. When Lucky starts to date Rebecca, it bothers both Nikolas and Elizabeth. Nikolas kisses Elizabeth to make them jealous, prompting Elizabeth and Lucky to reconcile. However, Elizabeth finds herself increasingly attracted to Nikolas. Lucky proposes to Elizabeth, and she goes to Wyndemere to see Nikolas. Nikolas and Elizabeth sleep together, but she leaves and accepts Lucky's proposal. Nikolas finds out Rebecca is scamming him and the Quartermaines for Emily's money, and he begins dating her in a plot of revenge. He eventually breaks off the relationship. Rebecca tries to reconcile, but Nikolas tells her he will never be able to care for her. Elizabeth and Nikolas wrestle with their feelings for months, continuing to sleep together. Lucky finds out eventually and confronts them, saying he's done with both of them. 2010–2011 On Valentine's Day, Elizabeth passes out from hypothermia and is found by Lucky. She finds out she is pregnant and the baby could be either Nikolas' or Lucky's. After finding Elizabeth on the hospital roof looking ready to jump, she is sent to Shadybrook. When the paternity test is taken, Lucky is revealed to be the father of Elizabeth's baby. However, Helena tampers with the results, making it seem that Nikolas is the father. During the pregnancy, Elizabeth and Nikolas mend their relationship, with the help of Shirley, a terminal patient they both befriend. In July 2010, Aiden Alexi Nikolossovich Cassadine is born. He is briefly kidnapped by Franco, but Lucky finds him and brings him home. In September, Nikolas invites Brook Lynn Ashton to be his escort for a formal dinner, leading to her officially working as his escort for social commitments. Eventually their relationship turns into a brief romance, but they break up amicably and she leaves town to pursue a music career. When Jake Spencer is killed by Luke in a hit-and-run accident, Nikolas manages to repair his relationship with Lucky, helping him pull through his grief and setting up a wedding night for Lucky and his