Relationships in general make people a bit nervous. It's about trust. Do I trust you enough to go there?
Intelligent, sweet, down-to-earth and adventurous. Bonus points if you're a little bit quirky.
You can't stop loving or wanting to love because when its right it's the best thing in the world. When you're in a relationship and its good, even if nothing else in your life is right, you feel like your whole world is complete.