Rob Kardashian Declares He's in 'Love' With Blac Chyna

But he just had to drop an f-bomb in there, too.

Rob Kardashian is taking his romance with Blac Chyna to the next level!

The 28-year-old reality star proclaimed his love for his new girlfriend on Instagram, sharing a photo of the 27-year-old personality sound asleep.

"Love this woman right here, so f**k y'all with your negative comments!!" he captioned the pic.

WATCH: Khloe Kardashian Praises Rob's 'Healthy Fitness Journey' 

He also shared a video of Chyna giggling in bed next to him.

Kardashian has been significantly more active on social media in recent months after going public with his new romance earlier this year.

WATCH: Rob Kardashian 'Lost Another Ten Pounds,' Blac Chyna Brought Out 'the Old Rob' 

On Tuesday, a source close to the formerly reclusive Kardashian told ET that he's "lost another 10 pounds and has really been taking care of himself."

"It really all is because of Blac Chyna," the source said. "Chyna is great... She has brought this new side of him out, the old Rob! He's really having a lot of fun."

But all that fun hasn't come without its fair share of family drama. Last week, Rob posted a NSFW comment on Instagram, targeting his famous family members' apparent disapproval of the relationship.

WATCH: Why Rob Kardashian Dating Blac Chyna Is So Much More Drama Than You Ever Imagined 

The Kardashian-Jenner clan has a complicated relationship with Chyna, to say the least. Kim Kardashian used to be close with her, but the friendship cooled off when her youngest sister, Kylie Jenner, began dating Tyga, Chyna's former fiance and the father of her 3-year-old son, King Cairo.

On top of that, Kylie and Kourtney Kardashian recently shared photos of themselves hanging out with Rob's ex, Adrienne Bailon, while Rob has popped up in a Snapchat video with Khloe Kardashian's ex, French Montana.  

If that twisted web has your head spinning, watch the video below for everything you need to know about this complex family tree. (Trust us, there’s more.)