Snubbed! Caitlyn Jenner 'Hurt' Over Family's Lack Of Support For 'I Am Cait' -- How They Broke Her Heart

Caitlyn Jenner's much-anticipated docuseries I Am Cait premiered last night to mixed reviews and, according to a source close to the Keeping up with the Kardashians clan, "the lack of support from her entire family" made the experience that much worse for the 65-year-old former Olympian.

"Caitlyn was really hurt last night," the source tells RadarOnline.com exclusively.

Although the eight-part docuseries that airs on E! was heavily promoted by the network, the source claims Jenner was ultimately stunned by the fact that her biggest fans – her children – largely kept quiet and did not do any promotion for the show.

"She was really bothered by the fact that her family didn't show their support online on their Twitter or Instagram accounts like they do for Keeping up with the Kardashians, or for their own projects," says the source.

Daughter Kylie tweeted, "Who's watching I Am Cait?" but the others were silent.

As RadarOnline.com previously reported, when the outspoken equal rights advocate accepted the Arthur Ashe Courage Award at the ESPYs last week she was shown an abundance of support from all of her biological children, as well as her step-children with estranged ex-wife of 23 years, Kris Jenner.

But it hasn't always been so easy. In the premiere episode that aired last night, Kourtney, Khloe and Rob Kardashian all refused to go on-camera to meet her for the first time post-transition.

Of course, publicity-hungry step-daughter Kim Kardashian did not miss the opportunity for extra exposure and appeared several times throughout the debut.

However, that was not enough apparently, as the source says that "Caitlyn felt unfairly treated because so many of her kids or family members wouldn't even take the time to post a simple message on their social media accounts this weekend."

"Especially when they have make sure to promote everything that their mother Kris Jenner does, it really hurt."

Do you think that Caitlyn Jenner has reason to be upset or hurt? Tell us your thoughts in the comments below.