Haldis Imperium - Viola Grace I wasn't sure I would like this book as much as the first 3 but it was just as good. This is about Amy, who is the negotiator stuck in the suit so that no one can identify her for 4 year. She's had a crush on Palden and when her tenure ends, she's a little heartbroken. Then as soon as she is better after being encased in the suit, she's sent back to Palden to see if she's able to breed with him as women from Earth are ideal candidates for his species. After ignoring her for weeks, he figures out who she is and isn't letting her go.

Really good series. I'm going to read some of the author's other books.