From the source:
 
Last pairing from the set with all my Next Generation canon couples! Featuring Windy Belle x Starchaser.  
If you’re looking for a couple that’s the literal sense of “opposites attract” then look no further because that’s what these two are.  
Windy and Star have known each other all their lives, and despite their opposite personalities and tastes they found balance in a romantic relationship. Windy’s brashness and bold nature clashes with Star’s disciplinary and polite essence quite a few times, but instead of enforcing their own qualities on each other they learned to accept each other for who they are, with flaws and all, and find ways to enjoy things together.  
Both are willing to even do things they don’t like just for the sake of each other’s happiness. Windy learned how to dance, even though she was presumed a lost cause, because it’s one activity Star loves very much. And Starchaser despite disliking sports tags along with Windy, even if she doesn’t last long on the field.
 
 
Fun fact time!  
1- Starchaser is a great dancer unlike both her mothers, and she occasionally dances inside the castle if a nice beat is on the radio.
 
2- Windy Belle took secret dancing lessons just so she could take Starchaser out to Ponyville’s dance club since the Unicorn loved dancing but wouldn’t dare to go there on her own.
 
3- Starchaser and Windy Belle once entered a dancing contest in Ponyville (against Star’s will at first) and both won the second place.