Well, fighting like two school kids is a trait of suppressing affection, like many tough-but-sweet people tend to do with people they care about, and shipping two characters from a medium can be done even if they aren't gay in the show. The whole point of a ship is that it has a suspension of disbelief - It doesn't have to make canonical sense. Applejack and Rainbow Dash have the same stubborn nature, the same interests and competitive attitude. That would make them work feasibly well in an actual, functioning relationship. There's groundwork involved that a casual viewer of the show can see. Fluttermac has none of that. It's just imagery, really.



Regardless, you are free to have your opinion and I respect that.