If you're in love/with "the one", and have been with them long term, do you find it challenging to stay monogamous?
My DH (been together 14 years, have kids, etc) is my absolute best friend and soul mate, and I really fancy him. But there are still times when it's really hard not to take opportunities with other people. I never would, but it makes me wonder: is it always hard to behave yourself in long term relationships? Or is it effortless for some people? If you find it effortless, is this because of something you've done (chastity belt?), or has it always come naturally to you?