Scott, 32, has been regularly blasted by social media users for his apparent brash attitude to the separation – but his latest post suggests he's pining for 36-year-old Kourtney.
This week the self-styled Lord attended a friend's wedding, and it appears that his unnamed 'plus one' to the event forced him to think about his current situation.
Sharing a snap of a card that read 'Scott Disick guest', he wrote: "When u realise the grass isn't always greener [sic]."
Scott's followers were quick to sympathise with his situation, but one wrote: "Go home and fight for your family!"
It is thought that Kourtney ended the relationship after Scott was seen partying with his rumoured ex-girlfriend Chloe Bartolli in St Tropez.
Last month Scott spoke out for the first time since the news broke, admitting he was finding it hard.
Speaking to reporters during an appearance at Las Vegas club 1OAK, Scott said: "I'm just taking it one day at a time.
"With everything going on right now, I need to be positive for myself."