Kourtney Kardashian and boyfriend Travis Barker’s ex engaged in a tussle on social media?

Kourtney Kardashian and Shanna Moakler appear to be at loggerheads over the Internet. The battle began when Moakler, Travis Barker’s ex-wife, appeared to “like” a disparaging comment about Kardashian, on Instagram. Though Moakler later denied she meant any harm, it provoked a reaction from Kardashian on Poosh.

“It’s no wonder we’ve made a daily—or several times daily, or every hour—habit of checking in our exes, and our exes’ exes, their new lovers, friends, acquaintances, and so forth,” read the Poosh post. “It’s not healthy, it’s not helping us move on, and unfortunately, it’s all too easy.”

Though Moakler doesn’t have a blog to turn to, she posted a quote on her Instagram as a response to that blog post.  “Stop complaining about your life,” the quote read. “There are people out there dating your ex.” with a crying laughing emoji and a wink emoji alongside the quote.

Despite this ‘tussle’, Moakler had said she was happy for him and that he’s found love again and said, “He’s my friend and co-parent, and I want him to be happy,” she told a paparazzo, “and if being with her makes him happy, and she’s happy, I’m happy for both of them, honestly.”

Moakler is currently dating on-again, off-again boyfriend Matthew Rondeau while Barker and Kardashian made their relationship Instagram official earlier this month.