Do you see a similarity between Milah and Belle? And what do you think about my how-Hook-will-have-his-revenge theory (look inside)?

When it came to their character Milah and Belle are really different people, one of them selfless the other selfish, one have gentle soul the other hot tempered, but both of them want the same thing, to explore the world, they want to be free and experience different things, I think if belle married gaston she probably will have the same fate like milah (I don't think she will leave her kids though)

belle is more lucky, she meet her true love before she married gaston, she can fallow her dream without have to feel the guilt of leaving her husband and kids, I do still think what milah did was wrong, I feel really bad for bael, that kid have been through a lot.

I see many parallel and connection between belle/rumple/milah/hook in last eps, this makes me wonder,
Rumple weakness is his family, the people he love like bael and belle,
So maybe hook will take belle and try to mess up rumbelle relationship so he can have his revenge or he get rumple through bael, maybe tell him that rumple the one who murder his mother or something like that,
What do you think? Which one of this theory is more likely will happen? Or do you have a theory of your own