What is the difference between intrapersonal and interpersonal relationships?
An intrapersonal relationship is a relationship with yourself.
This includes how much you respect yourself, how well you know your
desires and your motivations, and other things. An interpersonal
relationship is a relationship with another person. This includes
the same factors as above, and others that are relevant to knowing
and empathizing with others.
To remember the difference, remember that an interstate highway
connects states (in the US), and that an intrastate highway is a
highway which doesn't leave the state. The states are like
people.