Chloe Sevigny at the 60th Primetime Creative Arts Emmy Awards at the Nokia Theatre. Los Angeles, California - 13.09.08

The star has been dating the A.R.E. Weapons bass player on and off for the past eight years, but friends insist this split is for good.

One pal tells U.S. magazine Life + Style, "She insisted on a clean break and she won't be talking to Matt."

Source: WENN