^That’s a good theory. 🙂
Personally, I think the title is referring to Belle’s feelings of loneliness and abandonment after separating from Rumpel and being locked up by the Evil Queen. She’s spent her entire life as a prisoner. First it was living under the thumb of her father, then it was living with Rumpel and then it was when Regina locked her up. She’s been treated like an outisder her entire life. 🙁
As sad that is 🙁 I like this theory. With her being who she (her status) is in her village she was likely treated as an outsider by the other villagers. And as a woman she would have been treated as an outsider by the men of her life. She told Rumple that women were limited in what they could do and she seemed to be interested in things that not many women pursued. Then in some ways she became an outsider in Rumple’s castle because of his fear of true love. She became an outsider during her travels (the usual apprehension that villagers have towards strangers).
She definitely has been a prisoner her whole life. 😥