Rob Kardashian Determined To Pursue Weight Loss To Stop Blac Chyna From Cheating?

Rob Kardashian's weight loss has become apparent with the recent photos of him looking slimmer in the past couple of days. 

Could he be threatened by his girlfriend's recent cheating rumors?

According to Hollywood Life, the model was seen with a mystery man, "talking closely and snapping a few pictures," while she partied at Trinidad and Tobago's Carnival celebration last week. 

They were also seen getting quite close together while she wore a skimpy bikini.

A couple of days later, the 27-year-old posted a photo of her man burying his face deep in her chest. 

He also showered her with gifts on Valentines' Day. Hollywood Life reported that she posted a video showing off the things she got for the special day.

"Look at this really nice present my bae got for me," she captioned the clip. "And if you look really closely, it's the lyrics to our favorite song." 

Now it seems Rob Kardashian is taking his weight loss seriously as well. He was recently spotted joining his girl running errands in Los Angeles.

TMZ were able to take photos of the new, beardless reality star. Hollywood Life further reported that he's been working out and eating healthy. He's also gaining back the confidence he used to have years ago.

Even Kanye West, who is married to the 28-year-old's sister Kim, wrote about their budding romance and the model's influence in his brother-in-law's weight management in a recent song.

"Blac Chyna f***ing Rob helped him with the weight," he reportedly wrote.

He has been going to the gym for the past couple of weeks, with the couple sharing snippets of his workout in the gym.

Mirror also noted that Chyna was a huge influence on Rob Kardashian's weight loss challenge.

They have reportedly been avoiding red meat and "tucking into foods such as mushrooms, spinach and chicken."