"Sometimes his lashing out embarrasses her," says a source close to the reality star about Kanye West's various feuds and Twitter rants over the last couple weeks. "Of course she turns to her family when she feels that way."
For more details on how Kardashian and West's marriage is doing, pick up the latest issue of PEOPLE magazine, on newsstands Friday.
And though it's also caused some tension between the couple, "at the end of the day, she is 110 percent committed to keeping her family together, and there won't be anything that will ever get in the way of that," says the source.
Kardashian has also continued to be supportive of the rapper on social media, and apparently it's not just an act.
"She loves Kanye and will side with him on almost everything to keep him happy," says the source. "She thinks he is a genius and that he can rarely do anything wrong."