Lamar Odom seems to be having issues with the romantic development between ex-wife Khloe Kardashian and NBA star James Harden.

Rumors of a verbal dispute between Kardashian and Odom circulated after Odom showed up at Soulcycle in Beverly Hills on Wednesday.

The reality star was shocked by the altercation and she is now planning to hire a bodyguard, reports said.

Khloe Kardashian is “worried” about Lamar Odom after his surprise ambush. http://t.co/HGwW0y0HpT pic.twitter.com/EuDK0tFdVA

— HollywoodLife (@HollywoodLife) August 16, 2015

A witness recounted that Odom grabbed Kardashian’s arm when she ignored him. Other onlookers reportedly heard Kardashian screaming and even threatening to call the police. The witness claimed that Kardashian looked frightened.

The Keeping Up With the Kardashian star changed her number to stop Odom from calling her, People reported.

Odom denied all the accusations against him and insisted that the meeting he had with his ex-wife was “pre-arranged.”

In an attempt to clear the issue, Odom told TMZ, “Nobody got followed. Nobody got hassled. Nobody got harassed. Nobody got grabbed on, none of that…It’s ridiculous, it’s crazy…It’s just not the truth.”

Somebody in Khloe Kardashian’s life has a BIG problem with her new beau James Harden. Details http://t.co/DyAeNovf6v pic.twitter.com/cZoxuMtI1l

— In Touch Weekly (@intouchweekly) August 16, 2015

After the alleged verbal attack, Kardashian was spotted with rumored boyfriend, James Harden at Aristocratlifes Engineroom in Houston. The two celebrated James’ birthday and his $200 million deal with Adidas.

At the birthday party, the couple was said to be super close and according to observers, they apparently had a blast.

Kardashian and Harden have been seen together a number of times in recent months and seem to be spending quality time with each other.

The Houston Rockets star was also spotted at Kylie Jenner’s 18^th birthday bash last Sunday and celebrated Fourth of July weekend with Kardashian.

In 2013, Lamar Odom and Khloe Kardashian broke up, ending their 4-year marriage. They got divorced in July of 2015.