In the fifth season, she realized that she was kind to George, but she didn't have to love her, so she fell in love with plastic surgeon Si Long. Later, their relationship developed quite steadily, but then they broke Si Long's penis. Later, the female doctor in orthopedics and a new doctor from Iraq, Dr. Hunter, were cured, and then they were more stable without any mistakes. Knowing that Si Long 18-year-old daughter came in episode 10 of the sixth season, their relationship was in crisis. S chose his daughter to take her to Addison in Los Angeles for treatment. Lexie was depressed because his daughter was pregnant. At this time, because Izzie left, Alex was decadent, so they had sex. Later, Lacey confessed to Si Long. Si Long also admitted to sleeping with Addison once, that's all. PS: Are you sure you don't want to watch it again? Just because you hate a Lexie, the second half of the fifth season is still very good. Izzie became metastatic melanoma, and it was intended that Big Grey would marry Derke. Because Izzie was afraid of not winning, she gave the church to I and A, and the wedding scene between them was still very touching. Later, George took it away.