Baroness Goes on Strike (2021)

Blurb:
Although Baroness Cassia is on her deathbed, she’s relieved that it means she’s finally free from her loveless marriage to her mercenary husband, Zester. Oh, how she regrets her tireless efforts to keep his territory afloat! If only she had taken more time for herself. Her wish becomes reality when Cassia wakes up to find herself ten years back in the past. With this second chance, she’s determined to live a stress-free life. But can Cassia find the courage to rebel against Zester? Or is she doomed to repeat her nightmare of a past life?

Source: www.anisearch.com/manga/67833