“Keeping Up With the Kardashians” star Kourtney Kardashian sparked speculation about a possible feud with half sister Kylie Jenner when she posted a cryptic tweet Wednesday. The oldest Kardshian sister, 37, borrowed a lyric from Rihanna’s single “Work” to apparently express her feelings.

“Nobody text me in a crisis,” she wrote to her 19.5 million followers. The post was quickly liked more than 4,500 times and shared more than 2,500 times.

Minutes after she posted the tweet, she followed it with a recipe for macaroni and cheese with turkey bacon. The link on that one prompted users to download her app. Either she wanted to bury the first tweet or she purposely wrote something mysterious so more people would be exposed to her app.

Her message came on the same day In Touch Weekly wrote a story about Jenner, 18, “rebounding” with Disick, 32, after she broke up with boyfriend Tyga. Jenner is “finding solace — and more — with her sister’s ex,” a source told the magazine. “No one would be surprised if Scott and Kylie went public with their relationship. This family has no boundaries.”

Tyga, 26, opened up about his split with TMZ Monday. “I think we’re both just focused on our individual lives right now, and sometimes things don’t work out,” he said. “But, you know, I love her.” He’s happy for ex-girlfriend Blac Chyna, who is engaged to Jenner’s half brother, Rob Kardashian. “People grow, and you know, it’s time to evolve. Everybody should have an opportunity at love and to live their life,” he said.

Jenner hasn’t directly spoken about the breakup. While at the Cannes Film Festival in France, sister Kim Kardashian West said Jenner was “fine.” The teen has been linked to PartyNextDoor, who reportedly caused the split between Kehlani and Kyrie Irving.

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