Czarina Alexandra Romanov, Trilby (a fictional character), and Her Royal Canine Highness Abigail of Canton all have their suspicions.
In a parallel universe, this post having been published on February 14th, it might have been titled My Funny Valentine. Here's Linda Ronstadt singing that very song, complete with its rarely heard verse (3:17). I'd like to think she's singing it to me.
