"Friends."

Comments

[FanOfMostEverything]

Being best friends does not preclude a romantic relationship. Especially not with that body language.

[city street]

They said they were 'best friends' like three times, which makes me think of Have I Mentioned I'm Heterosexual Today?

[Dromicosuchus]

True enough, true enough. Far be it from me to let a simple matter of baldly stated fact get in the way of my shipping; there are, as you both most helpfully point out, always ways of rationalizing around such things, and why should I not take advantage of them? And don't get me wrong, I absolutely adored the episode; the Doctor's (accurate! So beautifully, beautifully accurate!) physics equations were fantastic (and "...my life's work; decades--centuries, really--of experimentation..." They did it. They really did it. He's a Time Lord), Gummy's monologue was a thing of beauty, and the Twilicane...I just...I couldn't even. And they got away without actually mentioning Derpy's name without making it seem forced, and Octavia and Vinyl were perfect, and and and and...It was wonderful. All of it. So happy.

[Blue_Paladin42]

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The Twilicane...

I am assuming that this was Discord "helping" things along.

[Kicks Mcgee]

"Best Friends"
i.imgur.com/8teRofp.gif

[ForSpite]

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3145636

I know people who go out of their way to call their wives their best friends, so yes, you're completely free to headcanon away.
Plus, I'm sure a lot of viewers will now just assume the episode is a prelude, not a preclude, to a relationship.