Khloe Kardashian's cheating baby daddy, Tristan Thompson, was "completely ignored" by her entire family at daughter True's lavish 1st birthday party this weekend, RadarOnline.com can exclusively reveal.
"Everyone was shocked when he showed up, because Khloe didn't tell most of her family that he was going to be there," a Keeping Up With the Kardashians insider said.
As Radar previously reported, Tristan was not expected to attend, as a source said he knows the family continues to "despise" him for past bad behavior before the breakup.
"They are all absolutely disgusted by him. So, when he walked into the party, no one knew what to do," the source said. "He was just completely ignored by all of her family for the entire time he was there, which wasn't long at all."
As fans know, the 28-year-old Cleveland Cavaliers star had not been spotted with his daughter since he allegedly cheated on Khloe, 34, with her little sister Kylie's 21-year-old former BFF, Jordyn Woods, over Valentine's Day weekend.
Despite her family's contempt for her ex, Khloe posed with Tristan and True at the baby's bash on Sunday, April 14.
A source previously told Radar that Khloe still holds an "obsession" for Tristan, and friends think she would even consider getting back together with him.
Even if Khloe would give Tristan a second (or third) chance, her family never will. the source insisted.
"The Kardashians accept he is True's father, but he will never, ever be accepted into their family, and he is never welcomed at any of their homes, aside from Khloe's."
"Caitlyn has really come a long way, and now that the smoke has cleared, she's been trying so hard to be a part of their lives," the insider told Radar.
"Having Caitlyn there meant a lot to Khloe, because seeing her mother Kris and Caitlyn get along is just proof that amicable coparenting is possible."