Breakup dogfight

IT WAS A ruff breakup.

A Manhattan tech exec sued his ex Monday, demanding she return a $48,300 engagement ring — and his dog.

Joe DiTomaso (photo inset), 42, said he and Jamie Cohen got engaged in 2013 after two years of dating. He bought her the pricey ring and dropped another $12,000 on furniture.

But their relationship went south, and in June 2015 Cohen took his dog, Blu, DiTomaso alleged in his Manhattan Supreme Court suit.

DiTomaso — CEO of a hotel search engine, All the Rooms — crossed paths with the pooch only one other time, in December 2015, he says.

“Blu was never seen by Mr. DiTomaso again,” according to the suit.

DiTomaso and Cohen met while working together. After the split, Cohen, 36, allegedly took all the furniture from their condo in November, when DiTomaso wasn’t home. She also refused to return her ring. “To date, none of DiTomaso’s furniture, furnishings and possessions have been returned,” the suit reads.

The lawsuit seeks return of the ring, furniture and dog, as well as damages of about $65,000.

“DiTomaso owned his dog named Blu prior to defendant moving in with him,” his court papers say. “DiTomaso is entitled to immediate return of his dog.”

A man answering DiTomaso’s telephone hung up the phone. A call to his attorney was not returned.

Cohen could not be reached for comment.