You Are at the End of the Downfall

Kaela was neglected by her husband, who loved another woman, and she suffered a miserable death in a war against the emperor, who was both her husband’s stepfather and uncle.
Surprisingly, she felt a sense of relief in her impending death and accepted her fate. However, when she opened her eyes, she found herself back in the time before her marriage.
Determined to escape her grim destiny, she tried desperately to avoid death, but ultimately, she ended up marrying her husband again and returned to the cold north.
Feeling defeated, she decided to give up everything. Now, she had no regrets and was merely waiting for the opportunity to die properly. Yet, strangely enough, her husband began to protect, guard, and love her dearly.
She felt it was futile; only death would bring her peace. Thus, she resolved to find a way to die this time.
For some, her life seemed free of regrets but monotonous, while for others, it was a desperate plea for help. The couple, who were meant to be together, found themselves misaligned; the wife sought death, while the husband only had eyes for her.
In the end, one of them was destined to succumb to madness.