Rob Kardashian Explains His ‘Keeping Up With the Kardashians’ Therapy Meltdown, Says Rihanna is Just a ‘Friend’

Rob Kardashian broke down on Sunday night’s emotional episode of Keeping Up With the Kardashians after a fight with big sister Kim Kardashian.

Tuesday morning, the reality star and aspiring entrepreneur called in to On Air With Ryan Seacrest to open up about his family therapy breakdown, his strained relationship with Kim — and his rumored romance with popstar Rihanna.

What did Rob have to say? 

“[Kim] brings out my negative energy,” he told Ryan Seacrest. “When it comes to money and business, she thinks I tend to spend too much and I’m really stupid with my money.”

During last week’s episode, Rob felt Kim was negatively impacting his career by holding him back from pursuing a new business venture: Opening a DASH men’s store in London.

“Kim is literally the most selfish person here,” he said, at one point, in a heated fight with her. “All she cares about is herself.”

However, the younger Kardashian admitted to Seacrest that sometimes his anger toward Kim can get out of hand. “Sometimes I say things I really don’t mean in a heated argument, and I usually take it out on Kim. I’ve done that before.”

He added, “I just feel like she’s an easy target for me, and I know her. She’s my sister. I know how to push her buttons.”

Meanwhile, Seacrest also asked Rob about his recent go-kart outing with superstar Rihanna. “Rihanna’s a friend,” he said. “And she is friends with my friend Capricorn, and it was her birthday. Then we all went out to celebrate our friend’s birthday. It was fun! It was a good night!”

Rob has also been linked to British songstress Rita Ora, but he replied that he’s just a fan of her music. “I’m a big fan,” he told Seacrest, before promising to bring her in to American Idol host’s studio for a future interview.

Keeping Up with the Kardashians airs Sundays at 9 PM.  In case you missed it, watch Rob’s breakdown unfold below.