Heather Massey of the Galaxy Express site has an excellent overview of the different subgenres of Science Fiction Romance at The Serious Reader.
And, yes, it was great to see Phoenix Rising as one of the recommended reads, as I’m in pretty incredible company, with Linnea Sinclair, Marcella Burnard, and even Catherine Asaro.
Take a look, as even I didn’t realize the sheer variety of stories for those of us who want the relationships as well done in our reading as the science fiction.