This dude here really impressed me; yet another must-read by him, and it coincides with my beliefs regarding relationship ever since I realize the someone I have now is a rare wife-material:
In the course of your life you will meet many people you love, and that can happen whether or not you already have a partner. You'll be tempted, you'll contemplate. But what really makes a relationship works is when you think and tell yourself that you are in a relationship that is worth holding on to, thereby decide to turn down the temptation and stay faithful. Commitment, as commonly referred to, is more important than the initial spark of love.
-- Jason Tey
(This is not a quote from him, lol. Just my reflection after reading his work but his writing revolved around this.)
Read it!
And just a footnote, I haven't actually met someone who tempted me or made me contemplate leaving my special someone, yet. But I don't doubt my own ability to stay committed. Hah!
Footnote on my footnote: I recalled that maybe at the rocky start of our relationship a particular childhood crush I loved (and still do, as a friend/sister) might have actually triggered some contemplation, but I've evidently stayed committed. Yay, testimonial! Hahah