Relationships in general make people a bit nervous. It's about trust. Do I trust you enough to go there?
I think its fantastic if your idea of fun is cuddling up on the couch with a movie or just relaxing together. However, I am not in the market for a total couch potato. If there is zero activity in your life, we will probably not be the best match.
Spiritual relationship is far more precious than physical. Physical relationship divorced from spiritual is body without soul.