Lamar Odom is said to be once again dating ex-girlfriend Lara Manoukian, reportedly leaving estranged wife Khloe Kardashian "heartbroken."

Hollywood Life reports Odom and Manoukian previously dated for seven years and recently reconnected despite all Kardashian's growing hints about wanting to patch things up with the former NBA star.

"Hearing that Lamar is back with his ex is crushing for Khloe," a source told the website of the 30-year-old "Keeping Up With The Kardashians" reality show star. "She's heartbroken over it and still doesn't know if she believes it. To find out another woman is making him happy is like a knife to the heart. Hearing that he's also doing better than ever living a good, clean life while with this woman is even harder to deal with."

According to Hollywood Life, beyond actually filing legal divorce papers roughly a year ago, Kardashian has been slow to take any other actions against her 35-year-old husband in hopes that they might be able to work things out.

Recently, she supposedly used Odom's last name to sign a deed for some property she purchased in Armenia, according to Hollywood Life. The divorce petition is set to legally expire at the end of the month.

A source later told the website Kardashian is having a hard time walking away from her "soul mate," but was hoping Odom would make the first move toward a genuine reconciliation.

"She sees his actions and shady behaviour and she backs off," said the source. "If he would just get his act together she would 100% call off the divorce permanently. It's as if he forced her to file for divorce, but she always hoped that just by filing he would get scared and act right."

Meanwhile, The Hollywood Gossip reports Odom allegedly once cheated on Manoukian with Kardashian.

Since splitting with Odom, Kardashian has been romantically linked to rapper French Montana.