Resignation is a character "vice of deficit" stemming from what would otherwise be a character virtue of Inspiration. It is not the same as not caring or lacking curiosity about achieving a goal, but rather is a clear vision of the goal, but sitll being "faithless" or "down in the mouth" about the goal - lacking passion for it, when it is a core part of the self. It is intellectually narcissistic, whether directed toward the self or toward others, which is to say that it contains either the intellectual narcissism of ignorance or prejudice.
One may be ignorant of how much potential their partner has for reaching their life's goals. One might also be ignorant of their own potential. They may be prejudicial against those who even try to encourage them, assuming things about them such as thinking that they just want advantage or superiority over them, when they really are just trying to help. If there ever was a character feature owed to one's partner it would be the virtue of Inspiration and the absence of Resignation, an insidious and harmful vice to detect. At least with the other vice, Propaganda, someone with mature, healthy boundaries can sense that they are being controlled or taken advantage of.
Someone who is "resigned," is by definition, negative or pessimistic about your, or their, very life's essence. Your life's goals and dreams are the most precious things you have, more even than the romance itself, or the welfare of your children. Without your dreams, you have nothing to give children, actually. Resignation about one's own life's prospects or those of a mate shows poor boundaries and a lack of mutual respect for the very life of the other person, beyond even their ideas or emotions. It is their spirit itself - their masculinity or femininity - that is on the line, and needs Inspiration as its cure.
As a vice which makes partnership within relationships fail to get to goals, and intellectually unattractive, consider this vice to be negative in many ways, including in sexual attraction, since it actually depletes the reserves of one's own, or the other partner's masculinity or femininity, making them less attractive and feeling less attracted back to you.