Instagram (@hilaryduff)

Here's Why Hilary Duff Took That Super Sexy Bikini Selfie

You know the one.

You might've noticed that super sexy bikini selfie Hilary Duff Instagrammed last night and been all, "Hey! Look at that! I'm going into cardiac arrest! Please project the 'What Dreams Are Made Of' performance sequence from 'The Lizzie McGuire Movie' over my casket at my funeral!"

Or not. Do you.

Anyway, here's the photo in question.

So, why did Hilary share the photo in the first place? Was she trying to show ex-husband Mike Comrie what he's missing?

Um, no.

The first rule of Hilary Duff is that Hilary Duff is not petty. Besides, she seems to have a pretty healthy, mature outlook on her past relationships.

"It wasn't working well enough to stay together, but there was still a lot of love involved," the "All About Me" singer revealed in a new interview for Cosmopolitan's April 2015 issue (h/t E! News). "It was just a slow set-in of us not being the match that we used to be."

The impetus for the "Younger" star's bikini pic was nothing more than pure self-love and mom-praising. Just look at the caption: "Hey #moms #westillgotit #loveyourbod."

Well, I guess that mystery's all cleared up. On to the next one: I feel like H-Duff's latest IG post has something to do with the Knights Templar, but what? Get Dan Brown on the phone.