'Upset' Khloe K misses Kim K's daughter's b'day

When the whole Kardashian clan was celebrating North West's second birthday, Khloe Kardashian missed the bash because she was too upset to party.

The 30-year-old reality TV star didn't attend Kim Kardashian's daughter's happiest day as she was sad about good pal Jamie Sangouthai's death, reported E! Online.

The 'Keeping Up With the Kardashians' star was one of the first people to reveal the tragic news that her estranged hubby Lamar Odom's best friend had passed away at just 37.

Trying to keep a positive outlook in the wake of the surprise news, the reality TV star has been trying to cope up and was even seen making her way to a Los Angeles gym.