It was a webnovel where the main character transmigrates into an alternate universe where she chose to marry and focus on her family instead of her career. She doesn't get the original owner's memories, so she initially misunderstands and thinks her husband is a jerk that doesn't appreciate the original owner's contribution to the family. She gradually finds out that the original owner's husband really loves and appreciates the original owner, and that he and the original owner have a good relationship. She doesn't see herself as his wife and considers if she should tell him the truth, that his wife of 10+ years is dead for all intents and purposes. A friend recommended it to me but they forgot the title too
Didn't someone ask for this a while back. I seem to recall seeing the exact description you just wrote.
This description was in the comments of another novel by someone who gave me lots of recs. I don’t know anything about that novel except what they told me