Many things had changed, of course, in the interim years, but in the end, they were what they’d always been.

I'm not familiar with the rest of the series this book belongs to, but it didn't stand in the way of my enjoyment. A Lady's Desire is a sweet little story about two friends reconnecting, finally seeing their mutual pining for what it is after a bit of clashing, and carving a life togeter in spite of the family's and the society's wishes. Both characters are interesting and sympathetic, and the narrative moves back and forth between the timelines, gradually exposing the backstory of their relationship.
Even though the story is pretty short, being a novella, it feels quite complete. I mean, I wouldn't say no to spending a bit more time in Win's and Sarah's company, but I don't feel like I missed out on a single important bit in their journey. Nothing felt rushed or underexplored. 
All in all, a really pleasant read to spend an evening with.