To determine the theme being developed in the passage, I would need additional context or details from the passage itself. Based on the options you've provided, the themes of supporting one's partner in marriage, valuing education, self-acceptance for happiness, and true love rooted in friendship are all valid themes.
If the passage discusses aspects of marriage, support, and partnership, the theme may lean towards "Marriage is about always supporting your partner." If it touches on education, it may emphasize that "A quality education is a necessary part of life." Themes about self-acceptance or friendship would arise if those concepts are core to the passage.
If you can share the specific details or content of the passage, I can provide a more informed answer regarding the theme.