I’ve been with my guy for 20+ years and we still have that spark for each other. Sure, it’s not like the first 6 months together where we spent every weekend in bed the entire time, but for “old married people” we have a pretty hot and sensual relationship. We are definitely each other’s 90%. We opened up our marriage about 5 years ago, not because we were stagnant but because we were in an exploration phase and going at it like rabbits and wanted to see what it would be like to add other people in. That being said, people should be in the kinds of relationships that work for them and meet their needs, whatever those might be at the time. It’s just that you don’t always have to trade passion for stability. If you really are a good fit for each other and you put effort into it, you can actually have both.