Lexie Grey deals with the tension between Mark and Derek by stress eating throughout the hospital.
Detailed episode guides and cast lists can be found on the Grey's Anatomy Universe Wiki and IMDb . "Grey's Anatomy" Sweet Surrender (TV Episode 2009) - IMDb [S5E20] Sweet Surrender
Dr. Owen Hunt seeks professional help for his PTSD, a significant step in his character arc. Lexie Grey deals with the tension between Mark