Metro

Sex-bust teach free

A Brooklyn teacher arrested for an alleged sexual relationship with a young female student was released yesterday as prosecutors decide if she’ll be charged.

The Queens DA deferred on filing criminal charges against Urszula Jankowska, 33, an English as a Second Language teacher at Williamsburg HS for Architecture and Design, where she allegedly had a years-long affair with the teen, who initially was in her class.

It came to light when Jankowska told the principal she had received messages from the student, one a love letter and the other threatening, sources said.

“I was not threatening her,” the student told The Post. “I guess she was my girlfriend and got upset.’’