Rob Kardashian Apologizes for Baby Shower Drama in 'KUWTK' Season Finale: 'I Feel Terrible'

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On Sunday's Keeping Up With the Kardashians season finale, the drama between Rob Kardashian and fiancée Blac Chyna kept going strong ahead of the birth of their baby girl.

This week, viewers finally got an inside look at the "DILF"-themed baby shower Kris Jenner and Rob's sisters threw for him back in September, which ended with Rob flipping out because he thought they didn't invite Chyna. To her own baby shower.

Rob got so mad he ended up tweeting out Kylie’s real cellphone number.

WATCH: Kardashian and Blac Chyna 'Staying Under One Roof' After Birth of Dream

As it turns out, Kim Kardashian had arranged for it to be a "guy's baby shower" from the get-go and even got Chyna's blessing beforehand.

However, because the communication between Rob and his pregnant fiancee was so strained, he didn't understand the plans.

Rob ended up skipping the party organized in his honor and going on a Twitter rant dissing his family instead, which he regretted almost immediately.

WATCH: Rob Kardashian Is Overjoyed By His Family’s Support, Sends Sweet Messages to His Sisters

The 28-year-old reality star tried to make things right between him and his mother by getting her some balloons and delivering a heartfelt apology.

"Of course I feel terrible that the shower they planned for me got ruined," Rob said in a solo interview. "Sometimes when Chyna and I aren't doing so well, I let it get the best of me and I need to work on that."

For her part, Kris was very forgiving, telling Rob, "We all love you so much and we’re so happy that this is happening. We can't wait till she's born."

PHOTOS: Stars Share Pics of Their Cute Kids

Since the episode was filmed, the two have been living together and taking care of their new bundle of joy, Dream Renee, who was born on Nov. 10.

Check out the video below for more on the couple's adorable baby girl, and how she's brought the pair closer together than ever before.