While Thompson attempts to talk with Khloe and play with True, whom Khloe was holding, many fans couldn't help but feel that the reality star was doing her best to largely ignore her ex as much as possible.
"Is it weird that I think I'm having anxiety thinking True will be one on Friday?!?!" she wrote.
The third cheating scandal surrounding Tristan Thompson and Khloe Kardashian has surely left Khloe completely heartbroken and done with Tristan's games, especially since he was involved with former family friend Jordyn Woods.
Kardashian also shared videos and photos on her Instagram Story of some of the goodies her daughter has gotten - including cookies with her picture on them, donuts spelling out HAPPY BIRTHDAY TRUE and even a diamond bracelet - in honor of turning 1. Man time goes by soo fast but I'm loving every minute of it.
However, the epic bash - which kicked off Sunday afternoon, two days after True's actual birthday - wasn't all awkward. "I am honoured and so thankful to be your mommy! You are my ultimate True love!" The party came nearly a year to the day Thompson was accused of being unfaithful for the first time when he kissed another woman days before True was born.
Khloe firmly blames Tristan for his disrespectful infidelities, saying: 'What's been harder & more painful is being hurt by someone so close to me'.
"Khloe and the family will be celebrating True's first birthday this weekend", ET's source said.
Hiring celebrity party planner Mindy Weiss for the big day, Khloé spared no expense for her daughter's soiree, renting ponies and over-the-top balloon displays to welcome the kids.