She struggles to be a good mother to the child while completing her demanding residency. Already overstressed, Susan clashes with the new Chief Resident, Kerry Weaver, numerous times, forcing Mark Greene to step in between them. Animosity between Kerry and Susan lessens over time, but never goes away completely. Realizing that Chloe may never return, Susan considers giving Susie up for adoption. She gets as far as introducing the baby to potential adoptive parents, but cannot bring herself to part with her niece, so she decides to keep her and adopt the child as her own.