It looks to me that there was already a conversation had….
From what was said in the sneak peek, it seems like Derek and Braeden already done talked about him dying and she had already done told him “nope.”
Just because she’s getting ready for war doesn’t mean that she doesn’t care about Derek and his ill advised need to die. And it is so ill advised. He’s a 24-26 year old man with all the possibilities in the world. He has a woman and a pack and family. This whole Derek wants to die for something, let him mentality is bullshit.