If you think about it... Lucy/Mina's ship name could = Lina = Lena... who is basically (in part) a combination of both of these characters. She has Mina's intelligence (debatable at times), strive to learn and bad taste in exes +her dark hair kinda but maybe not & Lucy's taste in women ie. best friends, as well as her bravery, intelligence and great fashion sense. Ps. I know their ship name is Westernray I'm just trying to prove a point.