Scott Disick was spotted at a party with an unknown woman, just days after ex-girlfriend Kourtney Kardashian announced her engagement.

Last night in Los Angeles, the father of three was spotted with a 23-year-old model, according to Page Six.

Disick dressed casually for the occasion, wearing cargo trousers and a black hoodie. His female companion, on the other hand, was dressed in a tight black dress with knee-high leather boots.

This is the first time the Flip It Like Disick star has been seen in public since she and her boyfriend Travis Barker announced their engagement.

According to an insider, Disick was “losing his mind” over the impending nuptials of his ex.

“Scott is going crazy,” the source claimed. “He’s going to go off the deep end. It’s really bad. It’s about to get dark.”