Spike is Twilight's closest friend, yet people often seem to think that, because his physical differences set him apart and he lacks an Element of Harmony, he doesn't "fit" in the group, and isn't one of their friends. Pictures featuring the mane six are just pictures of ponies, not pictures of a group of friends.



It's pretty unsettling to think that they're an exclusive group of friends, and Spike, who shows them more loyalty and devotion than any one of them, is just an optional add-on.