So you argue that you should both enjoy exploring new things together in common.
No one is arguing that you should spend every minute with your partner, but if you want to spend time together, you should have an activity that you both enjoy (which might be exploring new things!), otherwise the relationship will be hard.
on the contrary, most relationships got started only because both partners enjoy exploring each other’s bodies. any other activities they might have in common is some afterthought that is tacked on after the relationship acquired a stable footing. i still don’t have any activity in common with my wife, and we’ve spent 2 decades & change…
No one is arguing that you should spend every minute with your partner, but if you want to spend time together, you should have an activity that you both enjoy (which might be exploring new things!), otherwise the relationship will be hard.