Sunday's episode was a story of triumph and tragedy on Keeping Up with the Kardashians, as viewers finally saw Kim Kardashian's engagement to Kanye West and gush over her giant engagement ring -- while her sister's partner Scott Disick visited his critically-ill mom, who passed away just hours later.

As Breaking Celebrity News reported on in-depth, Kanye pulled off his proposal surprise (which is already well known to the world!) on Kim's 33rd birthday last October; Scott's mother, 63-year-old Bonnie Disick, passed away weeks afterwards.

As the show opened, Scott was dealing with his mother's illness and baby mama Kourtney Kardashian said of Bonnie,

"She's so lovable and sweet. He's handling it the best that he can."

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Scott also indicated he was concerned that his father Jeffrey, a diabetic, wasn't taking care of himself.

"For a long time, my father's been sick and out of shape," Scott told E!'s cameras. "I kind of knew my father wasn't going to live terribly old, so it's a really huge shocker to me to find out my MOM is sick.

"It almost doesn't feel real because never once did I hear anything about my mom."

Scott revealed to the family that Bonnie's liver had shut down and when she had gotten to the emergency room, had to be put on a respirator.

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While Scott went to visit his ailing mother in New York, the Kardashians and their close friends boarded a private plane to San Francisco to go to AT&T park, where Kanye was going to propose to Kim -- only momager Kris Jenner knew the secret, however, that this was no ord