Ha...finding the right person early is amazing!
If you have a desire to do something, be honest from the get go with the significant other and they will either share your journey/vision or not. If not and they are happy to wait for you then fine, but if not and they want you to not as well, then NOT fine!
Conversely, if the other wants to do something and insists you do it with them, and you really don't want to, then that's not cool either, don't put your guilt trip on me for you not doing something because it doesn't interest me! You want to do it, do it...I'm happy to watch you enjoy yourself from the sidelines with a cold beer!