To protect constantinople the byzantine emperors built what?

To protect Constantinople from the Germans, the Emperor Theodosius II, built in the fifth century a triple wall about 12 meters high that surrounded the city

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.