The crazy love life of “NCIS” star PAULEY PERRETTE has caught fire again – she’s engaged!

After a string of failed flings, the 42-year-old actress recently announced on Twitter that she was planning to marry 49-year-old actor/bartender Thomas Arklie, a former Marine in the British military.

“Me and my Marine are totally engaged now!” she tweeted on Nov. 19.

Pauley also posted a photo of the two of them together, referring to her heavily tattooed beau as the “most beautiful kind bad ass man on earth!”

But friends are not holding their breath that this re­lationship will last.

Pauley – who plays wacky yet brilliant forensics expert Abby Sciuto on the hit CBS crime se­ries – has a shaky track record.

She had a bitter failed marriage to musician Coyote Shivers, then a sham union with pizza de­livery boy Michael Bosman.

After that, she jumped into a doomed five-month romance with actor Leo Georgallis, which ended last July.

“Pauley can’t hang on to any man for any length of time,” a source close to Pauley told The EQNUIRER.

"She says she wants a stable, married life, but she’s terrified of love and com­mitment and seems destined to be alone forever.”