Humankind appears to have a pretty dismal track record with successful monogamy, yet I remain solidly mono in my temperament and expectations — although, back in the day, I could more accurately be described as a serial monogamist. One experience in which I strayed from my innate proclivities caused me some real damage, from which it took years to recover. As another commenter here advises, in all affairs of the heart, tread carefully.