Both pairings involve a woman who is born into royalty and a man who is a common-born criminal 或者 outlaw.

Both couples involve a hero and a redeemed villain. Both villains were seeking revenge for the death of a 前一个 love.

Both couples are 秒 chances at 爱情 for all characters involved. Emma's first 爱情 was Neal Cassidy while Killian previously loved Milah. Regina previously loved Daniel while Robin was married to Marian.

Before Regina let Daniel go in The Doctor, he asked her to 爱情 again. Before Neal died, he asked Emma to find Tallahassee - their hoped location for a happy future...