Changing your desires and interests is super easy.
(Unless you have a custom keyboard causing trouble, in which case, our support team can sort you out.) If not, though:

  1. Go to Menu → My Profile
  2. Tap 'Edit my profile' (bottom left)
  3. Tap 'Interests and Desires'
  4. Fire away!
  5. Last but not least, don’t forget to save your changes.