Kris Humphries' Ex GF -- Kim Kardashian is a 'Cruel Bitch!'

Myla Sinanaj -- who will sit for a deposition in New York City today in the Kris Humphries/Kim Kardashian divorce -- says Kim is a "cruel bitch" by scheduling her depo on the 1 year anniversary of Kris and Kim's wedding.TMZ has learned ... Myla is…