"At times, pinky rings have been worn with the intent to convey a message or indicate affiliation. During the
Victorian era, both single men and women uninterested in pursuing marriage could wear a ring on the little finger of their left hand.[...]Especially in the United States, pinky rings also developed an association with criminal activity.
[9] Grifters were thought to wear such rings, sometimes to provide their associates with a source of funding for their funeral expenses in case of their death,
[10] as were
made men in the
American Mafia.
[11]"
That's it! She thinks we're a made woman, here to marry into the Yakuza! It's all coming together!