What's in the autocorrect dictionary usually has nothing to do with what you typically write. No reason to wonder (i.e. if the insinuation being that that's a word they'd typically use).
We could joke about the auto correct knowing your subconscious mind.
Except if Facebook has auto correct, you can be sure it’s driven by a personal dossier on each of us, correlated by AI with every other person on the planet.