The basketball star was heavily criticized for reportedly having flings with other women just before Khloe gave birth to their child.
But now she seems to have forgiven him and is more secure in their relationship as she gets back to work.
She revealed via her Snapchat: "I'm very grateful because Tristan is being a great daddy and he has done all the feedings while I've been gone."
Kardashian has been busy working at getting back in charge of her Good American clothing line.
"Shout out to all the good dads out there," the new mom added.
"First day back at work since having True! I'm anxious to leave True but also eager to get back to work now that I have a new push and motivation."
The Cleveland Cavaliers player is also dad to 18-month-old son Prince from his previous relationship with Jordan Craig.
- Johnny Depp's Longtime Pal, Legendary Rock N' Roll Guitarist Jeff Beck Dead At 78
- Prince Harry & Meghan Markle’s Tell-All Netflix Series Delayed To 2023 After Attacks On ‘The Crown’
- Dianne Feinstein Refuses To Retire Before Her Senate Term Ends In 2024 Despite Colleagues Arguing She Is 'Mentally Unfit To Serve'