Khloé Kardashian is still dealing with divorce proceedings with Lamar Odom, who has maintained a close relationship with her brother -- would she blame Rob's issues on her estranged husband?

It is possible for Khloé to be worried about Rob's partying, as well as hanging out with the NBA player, who already had issues with alleged substance abuse. However, "That hasn't crossed her mind. She doesn't even want to open that idea up in her head because it will lead her to mental destruction," a source told Hollywood Life. "If that were the case, she'd strangle Lamar."

The 30-year-old reality star has apparently been stressed out about the lack of communication she's been having with Rob, since she does not want to be abandoned by Rob -- which is what Odom did to her. "It would push her over the edge, entirely," the source continued. "She would hope that Lamar would have been a beacon of support for Rob since he's already had problems."

"She doesn't want to relive that ugly period of her life that she had with Lamar, when he was going missing for days on end," the source added. "All she wants is for Rob to tell her what is wrong so she can rally behind him and support him."

According to RadarOnline, Rob Kardashian, who did not even attend Kim and Kanye West's wedding ceremony in May, has been avoiding his family members. He has "no reason to talk to Kim," a source revealed Radar, as "they haven't been on good terms for a very long time."

Kim "hasn't bothered to even attempt to talk to him since returning from her honeymoon, [while] Khloé has sent him text messages and left him several voicemails," the source continued. "Rob hasn't returned any of Khloe's phone calls or texts. He feels completely estranged from his sisters and family. He really isn't in a good place."