This tattoo on my left hand is turning purple-ish blue
Wedding rings are usually symbolic of marriage, but Frank instead uses the concept of a tattoo, which becomes faded in time.
Also, if one wears a wedding ring for a long time and take it off, one will have a “purple-ish” blue imprint on your finger.
He uses the tattoo to reference marriage as tattoos are permanent and marriage is technically to supposed to be permanent; he is expressing his disdain towards the American institution of marriage hence why the tattoo turns into a black and blue bruise.
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