I think this might be the last book of Dee/Devon Victorian Holiday Hearts novella series; it featured Delaney Andrews one of the Andrews' foster kids. I really enjoyed the first part where Delaney and Bartholomew met on the masque party. There was something quite sensual about it, when you met the strangers while using masks.
The relationship progress was lovely and I was happy that Bartholomew was able to live doing what he enjoyed doing (making jewelry!!) :)