I tend to spend almost all my free time biking or kayaking or skiing or hiking or... Dating or being involved with someone who doesn't do those activities wouldn't make a lot of sense, basically because I'd never see them. If it's a rainy evening, I do tend to call friends who don't bike or kayak to see if they want to get together for dinner..

I'm perfectly fine doing all those activities on my own, but it's nice having someone to do it with