I was thinking what Innerzone wrote. You can always list interests you've had in the past. Just because you haven't been active with them or motivated to do them in recent months/years, doesn't mean they're totally gone.

I'm a believer that sometimes (not always) it is possible for a "jolt" or "click", as I have called it, to suddenly reawaken passions of the past. I think that the mere fact that you're expressing an interest in dating is one you should attempt to pursue. If it doesn't work out in the short-term, it was at least a toe in the pool.