Favorite Winx Club Couple and Why?

Who is your favorite Winx Club couple and why? Mine is Flora and Helia I love watching them grow as a couple. I believe (other than season 5) that they have had no major fights and are a real pure love. I feel like if a couple (in winx club) have at least a max of 3 fights in a season they are not ment to be. What's the point of staying with someone who always fights with you? That's why I don't understand why Musa and Riven are still together. Stella and Brandon will be another example of "pure love" as well. Bloom and Sky have to many issues and so does AishaxNabu or AishaxRoy or Aishaxwhoever I mean really the girl was fine being single. Her personality doesn't fit with it. What do you think?

Mine is the same thing as you. c: They are so sweet together. <3 They are very good together.^^