One of my favorite dialogues on Mars:
Kaidan: I just wanna know, is the person that I followed to hell and back, the person that I loved? Are you still in there? Somewhere..
Shepard: They didn’t change me, Kaidan. Or how I feel about you. But words won’t convince you, will they?
Kaidan: Probably not.
Shepard: I didn’t think so. You were always stubborn.
Kaidan: *laughs* Me?