Living like this is preferable to dying. I need to stay alive so I can finish my duties.

[He's so grateful that he's here speaking with a friend instead of rotting in a prison. Julius's tone implies that he's thankful too.]

I won't give up, Sieglinde. We'll work together and make our own future.

[As corny as it sounds, this is how he honestly feels. He's being more open because he considers Sieglinde a friend.]