7 Types of Love But Only One Lasts a Lifetime

References
Sternberg, Robert J. (2004). “A Triangular Theory of Love”. In Reis, H. T.; Rusbult, C. E. (eds.). Close Relationships. New York: Psychology Press. p. 258. ISBN 978-0863775956.
Sternberg, Robert J. (1997). “Construct validation of a triangular love scale”. European Journal of Social Psychology. 27 (3): 313–335. doi:10.1002/(SICI)1099-0992(199705)27:3<313::AID-EJSP824>3.0.CO;2-4
Wikimedia Foundation. (2020, October 8). Triangular theory of love. Wikipedia. www.https://en.wikipedia.org/wiki/Triangular_theory_of_love.