Arethusa

This name is gorgeous, I love it.

I love this name's meaning, but the name itself is a bit old lady-ish, though I did find it in a book on my family's genealogy, so that's probably where I got the association.

Heavy. Too elaborate. Hate it.

I agree, it is too heavy. Arethusa, Medusa. Names that end in "-usa", in my opinion, are too heavy for real people. For characters. Maybe.