Aaaaaw. And look how happy they used to be in each others company - that one time they were photographed beside each other.

The 33-year-old Keeping Up with the Kardashians star still hasn't forgiven Beyonce - and by extension Jay Z - for blanking her wedding to Kanye in Florence back in May, and didn't make any effort to speak to her at the ceremony in Los Angeles on Sunday night. HANDBAGS!

A source told RadarOnline: "Kim blames Beyonce for Jay Z skipping their wedding. Kanye considered Jay family, and the last minute decision for him to not come to their wedding was extremely selfish." Seriously. HAND. BAGS.

The insider added: "[Kim] thinks that that Beyonce has always been very arrogant and aloof around her. Kim always made a real effort to get to know her and Jay, but she was always left with a very cold feeling. Beyoncé made Kim feel very insecure and that isn't something that she is used to." Understatement. "For a very long time, Kim didn’t tell Kanye how she felt, but after Jay skipped out on their wedding, she let it all come out."

A source previously said that Beyonce and Jay Z decided to go to the Hamptons instead of attending the wedding, as they thought it wasn't classy enough for their brand.

A well placed friend claimed: "They are guarding like hell their status. Beyonce wasn't going to allow a Kardashian to socially climb her. And Jay didn't want Kanye with Kim - he thinks it's bad for business. I think Jay lost a little respect for Kanye there."

He probably wasn't the only one.