There are many different kinds of attractions. Some that come to mind:
- Sexual: you want to have sex
- Sensual: you want to touch them
- Emotional: you want to share feelings
- Aesthetic: you like how they look
- Platonic: you like the idea of them
- Romantic: you want to share a deep knowledge of each other
- Intellectual: you want to discuss stuff with them
...and probably some more that I'm missing.