Many of my books address issues of abuse, trauma, spousal death, or other difficult topics as part of the backstory. But they are rarely described in the POV of a main character. (Exception is London Tides, which has a depiction of PTSD in the FMC.)
This author has verified their writing style and content information, but their books have not yet been added to the Closed Door Romance Database.
In the meantime, you can browse their books on Amazon.