Almost every type of society that has ever existed has been marked by some form(s) of social inequality. Why do you think this is the case

Hi. You have not reported the case that this question refers to. This makes it difficult for your question to be answered. However, I will try to help you as best I can.

Social inequality fits into a society when this society allows the formation of different social classes, where some have access to more resources and privileges than the others. In this case, to answer this question, you need to look at this inequality of social classes in the case that your question refers to.

intimacy, passion and commitment are the components of a interpersonal relationship emphasized in the triangular theory of love by robert sternberg.

the triangular theory of love says love can be comprehend as this componest form the vertices of a triangle.  

intimacy relates to feelings such as of closeness and connection;

passion relates the drives that brings people together, as physical attraction.

commitment relates to the being in a long-term relationship.

it is a better alternative