She and husband Wiz Khalifa split in September about a year of marriage.
"I just want to focus on my kid and work," Rose said.
Rose and the rapper's son Sebastian Taylor Thomaz turned two in February.
"He's big and he's talking," Rose boasted. "He knows everything. He's so smart. He has full conversations. It will blow your mind."
As for work, Rose will be seen in the romantic dramedy Sisterhood in theaters on next month and her book, How to Be a Bad Bitch, is set for release in October.
And not like it's a big surprise, but Rose said she certainly hasn't ruled out posting more booty selfies on Instagram.
"It just has to be organic," she said of showing off her derriere. "I don't plan those things. It just happens."
If you can't wait until "it just happens," make sure to check out Rose in Schumer's new music video for "Milk Milk Lemonade," the Trainwreck star's new booty-centric song parody.
Rose also isn't afraid to post unfiltered pics of her backside on social media. She did just that about three weeks ago with a photo of herself wearing a bikini on a beach in Hawaii.
"Yaaaaaas dimples on the booty!" she wrote. "Lol #StandUpStraightSoIKnowitsReal #BeautifulBabiesGiveYouBeautifulDimples #MILFIN."