I feel bad for Lucian
Poor guy keeps pushing to save his wife only to narrowly fail every time. Then he comes to the realization that each of his countless attempts have only caused her more and more suffering.
So he actually gives up on saving her and heads off one last time to end the cycle of torment for all parties involved: him, thresh and senna.
That's some serious character development.
Hopefully Lucian gets some respite in the coming lore.