<P> The first two seasons show her to be much more empathetic and sympathetic to Chuck's plight than Casey, and is highly protective of Chuck, to an extent beyond the requirements of her mission to safeguard the Intersect . Where Casey for a long time only seems concerned with physical threats to Chuck's safety (things that might cost the government the use of the Intersect information in Chuck's head), Sarah is more concerned for him as an individual: </P> <Ul> <Li> Sarah is quick to reassure Chuck of his own abilities beyond the Intersect, and tells him on several occasions that he has made an excellent spy . </Li> <Li> Sarah openly warned both Lou and Jill--with whom Chuck carried on brief relationships--not to hurt him . </Li> <Li> By the end of the first season, she is prepared to pull a gun on a fellow CIA agent rather than allow Chuck to be detained for the rest of his life . Later, in "Chuck Versus Santa Claus", she executes an unarmed Fulcrum agent, since his special status makes him confident that Fulcrum will find him and that he would then reveal to them that Chuck is the Intersect, and thereafter Chuck's life would be over . </Li> <Li> Early on, she objects to orders that put Chuck and those close to him in danger; she also increasingly objects to lying or concealing information from Chuck and using him without his knowledge . Chuck and Sarah have always had a saying' Don't freak out' . </Li> </Ul> <Li> Sarah is quick to reassure Chuck of his own abilities beyond the Intersect, and tells him on several occasions that he has made an excellent spy . </Li> <Li> Sarah openly warned both Lou and Jill--with whom Chuck carried on brief relationships--not to hurt him . </Li>

When do sarah and chuck get back together