So much for keeping it civil on Father's Day! Rob Kardashian is ticked his ex-flame Blac Chyna put him on blast via her Instagram Stories on June 17. She didn't appear to be in the celebrating mood on the holiday, instead calling out both of her baby daddies in a heated post. "WOW Tyga and Rob…….no child support BOSS B—H 201….." she dished to her followers. After being called out publicly, Rob wants nothing more than to set the record straight.

"Rob doesn’t know why Chyna disrespected him on Father’s Day," a source tells In Touch exclusively. "Rob thinks she’s wrong and out of line and feels he’s the best father to both Dream and King. He’s not happy with Chyna because she’s continuously trying to extort him and his family for her financial gain. He thinks he could be father of the year if he went to court and got full custody of Dream, but because he’s not vindictive he won’t do that to Chyna. Despite it all, Rob has a lot of love from his family on Father’s Day and vows that Dream will grow up knowing her daddy loves her.”

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Chyna explained why she spilled the tea about Rob and Tyga in another post to her IG stories, writing: "just cause y'all in my business." The former reality star has two children: one-year-old Dream with Rob and King Cairo, 5, with Tyga. Fans also suspect that she has a bundle of joy on the way with her 18-year-old boyfriend YBN Almighty Jay after seeing what appeared to be a baby bump at her son's graduation last week. However, Chyna seemingly slammed the pregnancy rumors by sharing a video of her taut tummy on June 18.

Fans think there's definitely a possibility of Chyna having YBN's baby, whether the time is now or later, since YBN told Page Six in April, "I don't wear condoms. I would not want to f–k a b—h I did not want to get pregnant. If Chyna got pregnant, I would keep that s–t." As we previously reported, Rob would not be a happy camper if Chyna welcomed a new baby with her younger beau, but luckily that doesn't appear to be happening at the moment. Hopefully, Chyna and Rob can work through their differences to co-parent peacefully!