While Kim Kardashian is celebrating her engagement to New Jersey Nets play Kris Humphries, her ex-boyfriend Reggie Bush is reportedly feeling pretty down over the news.

According to Life & Style, the New Orleans Saints player was supposed to attend a launch party for the Gumball Rally 3000 in London on May 25, but back out at the last minute, supposedly due to the news that Kardashian was engaged.

"We heard Kim got engaged, so we think that's why [Reggie] didn't turn up," a partygoer heard NFL player Cody Green tell a friend at the event. "He must be pretty cut up. He sounded like he was, and that was why he didn't make it down."

Bush and Green are participating in the Gumball Rally 3000, a cross-Europe celebrity car race.