Thompson — who was in town for his team's match against the 76ers on Saturday — seemed to be keeping warm in a camo jacket, black sweatsuit and a pair of sneakers as he carried a gym bag along with a backpack.
"Betrayal rarely comes from your enemies," the Good American cofounder captioned the photos — seemingly hitting back at her baby daddy's most recent paternity scandal.
As OK! previously reported, Thompson confirmed earlier this month that he in fact fathered a child ( a son who was born in December) with fitness trainer Maralee Nichols during his birthday celebrations in March while he was still in a relationship with Kardashian.
"Today, paternity test results reveal that I fathered a child with Maralee Nichols. I take full responsibility for my actions. Now that paternity has been established I look forward to amicably raising our son," the Sacramento Kings player admitted. "I sincerely apologize to everyone I've hurt or disappointed throughout this ordeal both publicly and privately."
Thompson also went on to make a grand public apology to the Kocktails with Khloé star. "Khloé, you don't deserve this," he said directly to Kardashian.
"You don't deserve the heartache and humiliation I have cause you. You don't deserve the way I have treated you over the years," Thompson added. "My actions certainly have not lined up with the way I view you. I have the utmost respect and love for you. Regardless of what you may think. Again, I am so incredibly sorry."