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Put a fork in it!

Real Housewives of Beverly Hills star Kyle Richards has given up trying to mend fences with frenemy Camille Grammer.

The pair have traded barbs throughout the Bravo hit's current season -- but Richards, 41, wanted to lend her support in the wake of Grammer's messy split from Kelsey Grammer.

After 14 years of marriage, Kelsey, 55, filed for divorce from Camille, 41, in July, and and immediately stepped out with new girlfriend Kayte Walsh, 29; although his divorce isn't yet finalized, he and Walsh confirmed their engagement last week.

"I actually, in spite of everything did try to reach out to Camille," Richards told at Monday's NOH8 campaign anniversary bash in Hollywood. "And she didn't respond, so...I'm done. I'm done."

During a memorable trip to NYC, Grammer, 42, overheard Richards call her "insecure." Richards' response? "You know what? You need to get help!"

Later, Grammer accused Richards of being jealous and "pernicious."