Facet of/facet to [closed]

She has many facets to her personality

She has many facets of her personality

The only redeeming facet of the group was a boy

Why is it so? How 'to and of' prepositions are used in these sentences?

She has many facets to her personality.

This means "She has many facets that belong to or that comprise her own personality.

She has many facets of her personality.

This is simply wrong... It is a very bad example because "she" and "her" must refer to different people if the sentence is to make sense.

Mary has many facets of Jane's personality."

This means "Mary has many facets that are associated with [facets of] Jane's personality, i.e. Mary shares some of Jane's facets.

The only redeeming facet of the group was a boy

This is another poor example.