Sometimes existing hobbies and passions don't overlap, but there's still room here to strengthen your bond. For example, I'm a singer who's involved with the local symphony chorus and occasionally sings professionally. My biggest cheerleader is my boyfriend, who shows up to important concerts and gigs. Before we met, he didn't know much about classical music, but now when the symphony lists their new season, he's enthusiastic and knowledgeable about the upcoming performances.
Conversely, while I'm not very outdoorsy, he thrives in rugged, natural settings. I'm terrible at kayaking, but of course I joined him on a kayak adventure when he asked. And of course I'll go camping with him even though I'm really attached to my flat iron and modern plumbing. I really appreciate that he brought more of these outdoorsy experiences into my world — whether it's spending a Saturday morning hiking or roughing it overnight in the wilderness.