04/16/2012 06:06 am ET Updated Apr 16, 2012

'Khloe & Lamar': Kim's Visit Turns Into An Argument About Khloe's Inability To Get Pregnant (VIDEO)

If ever a marriage has been tested, "Khloe & Lamar" (Sun., 10 p.m. ET on E!) are certainly going through some trials and tribulations in their relationship right now. After an abrupt trade to Dallas, the couple is struggling with Lamar's depression and poor performance on the court as he tries to acclimate himself to the Mavericks and come to terms with what happened in Los Angeles.

To make matters more stressful, the couple has been trying to have a baby for the past two years to no avail. When Kim Kardashian traveled to Dallas for a visit, she kept bringing the issue up, which put Khloe on edge until finally she blew up at her sister. But Lamar admitted that he was a little jealous when he learned that Kourtney and Scott are now pregnant with their second child.

It's no wonder the tabloids have been touting marital problems for the couple. Whether the reports are true or not, they've certainly had to deal with enough adversity to cause any couple trouble in their marriage.

See how they handle everything as "Khloe & Lamar" continues Sundays at 10 p.m. ET on E!

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