The United States Constitution contains a system of checks and balances and set separation of powers because of the framers worry about one branch or two becoming too powerful and allowing a single party/group/person to become too powerful.
Interpersonal relationships can vary in depth based on the nature of the relationship. Typically, the relationship is a strong, deep or close bond that two ore ore people have. This can be a short friendship or last for many years depending on the relationship. Due to the deep connect the people have with each other, they have a significant impact on one another.