The past three months have been a trying time for the reality star, who split from his ex-fiancée Blac Chyna in February after a year of volatile ups and downs, during which they welcomed their daughter in November.
On Wednesday, a source told WHO that Kardashian’s focus is on his 4-month-old baby girl — and while Chyna is “giving pushback,” he wants dual custody of their child.
“They are still figuring things out but [Chyna] will certainly do whatever it takes to have Dream be with her for the majority of the time,” said the insider, adding that Kardashian’s mother is “backing Rob up 100 percent and won’t let Chyna get away with anything that’s less than fair.”
But on Friday, Chyna, 28, put their differences aside and wished Kardashian a happy birthday with a smiling photo of the two from happier times on Instagram.
The reality star’s family — including mom Kris Jenner, older sisters Kim, Kourtney and Khloé Kardashian, and youngest sister Kylie Jenner — also celebrated him on social media.
“I am so proud of the man you have become and it brings me so much joy to watch you grow as a brother, son and father,” Kris wrote in an Instagram post about her son. “There are so many blessings in this life, but being your mom is one of the greatest. I love you!! #HappybirthdayRob.”
This story originally appeared on PEOPLE.com.