The Keeping Up With the Kardashians star first met the former boxer in October 2016 and they've been spending time together ever since. Over a year later, the couple is still going strong and Kourtney's ex isn't too pleased about it, according to a source.
"Scott is still insanely jealous of Younes," the insider tells E! News. "He just can't come to terms with the fact that Kourtney has found true happiness with someone else."