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.

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.

Bush and Kardashian began dating in 2007, but went their separate ways two years later. The ups and downs of their relationship were also played out on the E! reality show ‘Keeping Up With the Kardashians.”