The 38-year-old Keeping Up With The Kardashians star -- who just last season revealed he was hoping to rekindle his love with Kourtney -- got the hell out of Los Angeles following the engagement news.
But he didn't escape to the East Coast to be in his feelings. Radar is told Scott was the star of the show when the doting dad treated his kids to an afternoon on the water.
Sources tell us, Disick was a "lovely" guest when he stopped at Claudio's -- one of the oldest family-run restaurants in the US and a staple in Greenport, New York.
Radar has learned Scott arrived at the beloved dining establishment on Wednesday via boat, just hours after Kourtney's engagement to Travis made headlines.
We're told he was in a "gracious" frame of mind while on daddy duty and even left a big tip at the end.
According to our insiders, Scott showed up at the historic landmark with the three children he shares with Kourtney -- Mason, 11, Penelope, 9, and Reign, 6.
We're told his 20-year-old girlfriend Amelia Gray Hamlin was nowhere in sight.
The KUWTK star treated his kids to one of Claudio's giant pretzels with mustard and cheese sauce -- something his ex would never allow, mostly because it's not gluten-free.
Despite the pretzel only costing $12, Radar is told Scott left the staff a "generous" tip for the tasty treat.
We've learned he also offered to stop and take photos with a number of the employees, something a star who's sad would never do.
Kourtney is allegedly set to become Mrs. Travis Barker after the Blink-182 drummer allegedly popped the question over the weekend in Las Vegas amid rumors she might be pregnant.
“I think Travis has been planning the proposal for ages,” a source told The Sun, adding their "intimate" wedding will take place later this year.
Fans are convinced the KUWTK star is pregnant -- pointing to her baggy clothing, recent vegan diet, and drinking water out of a martini glass.
Travis added fuel to the baby fire when he was caught lovingly rubbing her stomach, not knowing that paparazzi was nearby to capture the tender moment.
Kourtney and Travis have yet to comment on the engagement or pregnancy rumors, but one thing is for sure -- Scott Disick will be just fine.