Kim Kardashian West gives a shout out to her ex BFF Paris Hilton

They've come so far!

On Friday,Kim Kardashian West was feeling nostalgic, and decided to give a shout-out to an extremely unlikely person…

Her former BFF Paris Hilton!

In case you didn't know, the 35-year-old was once Miz Hilton's assistant/party buddy. The two have since parted ways.

It seems like Kimmy was missing her old chum when she posted the following snap: