The EC is possibly Eva Cross but I couldn't come up with anything for the RA. As the profits are to go to Eva's 'philanthropic Crossroads Foundation' possibly refers to something to do with that? I read some reviews where people objected to ECRA being mentioned so often, ran a search on the e-book and it is mentioned 10 times which I don't think is too excessive when it is what brings Eva and Teagen's relationship into the story.
The instant attraction did seem odd (although a little similar to Gideon and Eva), and it was obvious from what was written that when Teagen first saw Garrett running that she knew him so I was surprised that wasn't fleshed out, ditto the bit about the sapphire sofa - but on first reading I wouldn't be looking for clues, just reading the story, I have to do a re-read now I know the twist to confirm my initial feelings about the book. Plus wondering why Teagen was depressed as she seemed okay about that other marriage to the actor and of course no hint about how long ago that must have been (or maybe there is and I will spot that on a re-read?)
It's a novella but would have been nice if it had been a bit longer, with a little more added to the ending, and that after 7 years Eva is not pregnant (considering how they were going at it . . . . . !) But it did set the time placement for the book.
Crossfire (certainly the first two books) is a hard act to follow.