Though Royally Ever After is yet to be published, I feel I can rate it since I've read both novellas previously from 2 different anthologies. 4 stars is somewhat of a holistic rating.
Following are my reviews, scroll down at the end. But beware, spoilers apply!
“The Jilting of Lord Rothwick”, *3.5 (from Royal Weddings): http://punya.booklikes.com/post/641570/royal-weddings
“Lord Lovedon’s Duel”, *4 (from Royal Bridesmaids): http://punya.booklikes.com/post/641850/royal-bridesmaids