Yes, she has heartache, she has oppression, but she always does the right thing.
There are a lot of planters who want to marry her for her money and land, but she wants to marry someone she loves. There are three possibles -- she has a deep friendship with one but no romance, another is handsome and well-dressed but also malicious and self-centered, and the third porridge was just right, er, the third loves her for herself.
As is the nature of this type of book, she finds her true love and ends up fairly happy. The big event is when the Indians attacked the fort and there is death and disaster.
I googled for the author and that led me to a website that is written by someone who really likes all the Sunfire books. Apparently they're quite collectible now. I'm keeping this one, after all, it does have my name on it.