Lamar Odom and Khloe Kardashian's marriage has been rocked this week after a second woman has come forward, alleging an affair with the basketball player.

Kardashian has never been shy about putting her personal life on display for reality TV shows Keeping Up With the Kardashians and spin-off Khloe and Lamar, but now she's remaining quiet about the reports.

Only time will tell how the couple will deal with the scandal, but Dr. Jane Greer, who is a nationally renowned relationship expert, marriage and family therapist, is dishing her advice on how the couple can save their marriage.

"Whether a relationship is public or private, cheating is devastating. Even if these allegations aren't true, Khloe will still feel an excruciating betrayal, and there will be broken trust," Dr. Greer, who has not personally worked with the couple, told EnStars on Aug. 8.

According to Dr. Greer, Kardashian and Odom need to "isolate themselves" from the spotlight and focus on their relationship.

"If they're really committed to saving their marriage, they need to face the reality of the situation. Whether Lamar cheated or not,  the fact that there are allegations are a big problem," Dr. Greer said. "Khloe can't just ignore the issue this time. If she can't admit there's a problem, she is in serious denial. She needs to take whatever steps necessary to determine if the marriage is worth saving."

After 29-year-old Jennifer Robinson claimed she carried on a yearlong affair with the NBA player, Kardashian and Odom reportedly went on a “secret getaway” this summer in hopes of rebuilding the relationship. “They’re focused on the marriage, they’re committed to the relationship [and] they adore each other,” a source told Us Weekly.

This week, criminal defense attorney Polina Polonsky spoke to Star magazine about her alleged six-week affair with Lamar.

With the second round of cheating rumors swirling, Dr. Greer advises the couple to seek couple's counseling immediately.

"For any couple going through allegations of infidelity, if you want to save your marriage, then you need support. Their marriage is in crisis  -- so not seeking help would be like playing Russian roulette," Dr. Greer said.

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Dr. Jane Greer is a nationally renowned relationship expert, marriage and family therapist, author, blogger, and radio host. She is creator of "Shrink Wrap with Dr. Jane Greer," a media commentary on what we can learn from the trials and triumphs of celebrity relationships. Connect with Dr. Jane Greer on Facebook, and follow @DrJaneGreer on Twitter for her latest insights on love, relationships, sex, and intimacy. For more on Dr. Greer, visit https://www.drjanegreer.com.

Tags: Khloe Kardashian Lamar Odom