In recent decades, the constructs of individual differences have become important in the context of human romantic relationships. The present study aimed to investigate whether the personality, romantic attachment and mate value of couples can predict their relationship satisfaction. The sample consisted of 83 couples in long-term relationships and all the participants completed a set of questionnaires in person. The results indicate that the dimensions of romantic attachment are the constructs most able to predict satisfaction in a heterosexual relationship, while personality traits are the best predictors of relationship satisfaction for non-heterosexuals. In addition, the greater the differences in neuroticism and the lower in openness, the higher the relationship satisfaction, irrespective of sexual orientation. Thus, we can conclude that satisfaction in heterosexual and non-heterosexual relationships seems to be linked to different individual characteristics, but similarities and differences between the characteristics of the individuals in the couple appear to be important in relationship satisfaction for both heterosexuals and non-heterosexuals.

近几十年来，个体差异的构建在人类浪漫关系的背景下变得很重要。本研究旨在调查夫妻的个性、浪漫依恋和配偶价值是否可以预测他们的关系满意度。样本由 83 对长期关系的夫妇组成，所有参与者都亲自完成了一套问卷调查。结果表明，浪漫依恋的维度是最能预测异性恋关系满意度的结构，而个性特征是非异性恋关系满意度的最佳预测指标。此外，神经质差异越大，开放性越低，无论性取向如何，关系满意度越高。因此，