The reality TV star, 32, was at the wedding of his best friend JJ Corsini when he clearly missed the presence of his estranged girlfriend Kourtney Kardashian.
Sharing a photo of his name place on Instagram, which read 'Scott Disick guest', Scott seemed to reflect on his current woes.
He pondered: "When u realise the grass isn't always greener."
We wonder if Kourtney will see the message, which we think is a clear message he is regretting the split...
Before posting the forlorn message, Scott had been feeling more upbeat, saying: "At my best friends wedding couldn't be happier for @jjcorsini."
Scott and Kourtney - who have three children together - split up in July when Scott was pictured getting cosy with his ex-girlfriend Chloe Bartoli.
Previously, the pair had been in no rush to marry themselves, with Scott recently saying: "If it's not broke don't fix it - we're happy the way it is.
"I don't even think we'll have time to get married at the rate that we're popping out kid."
Meanwhile, Kourtney has also been on social media, but showing no signs of missing Scott.
Sharing a picture with her stunning sister Kendall Jenner, Kourtney joked: "Off duty supermodels. Oh wait, not plural."
All you need to know about Kourtney Kardashian:
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