Scott Disick vowed that his 4-day journey to Costa Rica with Kourtney Kardashian and their children, Mason, seven, Penelope, four, and Reign two, would be unforgettable. So when the mood struck — and as the E! cameras have been rolling — “Scott proposed to Kourtney,” a Kardashian source reveals in the new situation of Us Weekly. “Not with a ring. He just mentioned, 'Let's get married.'” Kourtney wouldn't engage. Set on preserving their romantic relationship platonic following nine many years of ups and downs, “she told him no,” says the insider. “Scott was embarrassed, upset and angry.” Fueling his distress: Disick, 33, had been on a two-12 months mission to win her back, receiving sober at a Malibu rehab in 2015 and going to clubs only for paid internet hosting gigs. The about-face came too late, says a pal: “Kourtney is more than currently being with him.” The sting of rejection left him reeling. As Us Weekly previously reported, he covertly flew a different woman to the Papagayo Peninsula, then holed up with her in the production team's hotel. “Kourtney is not upset he's seeing other women,” says a display insider. “She's upset heƝ disrupt the trip with the youngsters. If you are dating someone essential, deliver her to meet the household. Really do not hide her.” (A Disick pal contends his antics were set up for the demonstrate.) One day before the holiday was due to finish, Disick fled to Miami Januaryꀩ for a week of binge drinking with bikini-clad admirers. At Liv nightclub that evening, he met model Jessica“J Lynne”Harris. who he manufactured out with at the Setai hotel pool the next day. By January 31, he was wrapped around model Amber Davis on a poolside chaise lounge. Yet he couldn't get the interest of the a single female he wished. “This is all a Ə--k you' to Kourtney,” says the 1st supply. ǋut she does not care. She's completed with all of it.” For additional on Kourtney and Disick, pick up the new situation of Us Weekly, on newsstands now.