Scott Disick May Regret Kourtney Kardashian Split: 'The Grass Isn't Always Greener'

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Does the reality star have second thoughts about his bad behavior?

Is Scott Disick having second thoughts?

The 32-year-old reality star Instagrammed from his best friend JJ Corsini's wedding, and the post seemed to reflect on Disick's newly single status after splitting from longtime girlfriend Kourtney Kardashian.

WATCH: Scott Disick Breaks Silence in First Public Appearance Since Breakup

He captioned a photo of his table card, simply labeled "Scott Disick Guest," with the pointed message, "When u realize the grass isn't always greener."

Just a few hours earlier, the father of three posted a photo from the ceremony, saying he "couldn’t be happier" for his buddy's impending nuptials.

WATCH: Kourtney Kardashian Flaunts Fit Figure Post-Split

Maybe the ceremony reminded Disick of everything he had? Kardashian dumped Disick after he was caught getting cozy with an ex-girlfriend in Europe. The two have three children together, Mason, 5, Penelope, 3, and Reign, 7 months.

Last week, Disick admitted he was taking life "a day at a time" when he made his first public appearance since the split at 1Oak in Las Vegas. See more from his big night out in the video below.