This is the song that seems to me to be from both Abigail & James right after their parents put them together. When he's choosing her to save his family, while thinking of Outlawed Snow, and she's going with him for her father, while her beloved Fredrick is encased in gold.
Re: David/Kathryn/Mary Margaret & James/Snow/Kathryn/Fredrick
"I Could" -- Kimberly Locke