Ex busted in slay of gal left with tot

A BRONX MAN stabbed his exgirlfriend to death — and left their 2-year-old son alone with her body, police said.

Darrin Rose, 22, is accused of killing Zoila Feliz inside her apartment on Stratford Ave. near Westchester Ave. in Soundview, authorities said.

Rose cut Feliz’s throat and stabbed her in the stomach during an argument in the bedroom, police said.

Feliz’s worried mom found her body at about 12:30 a.m. Wednesday. She told police no one answered the doorbell and she heard her grandson, Jaylen crying on the other side of the door.

The building superintendent gave the worried mother access to the fire escape, and through the window she saw her 22-yearold daughter lying in a pool of blood. The boy was unharmed, cops said.

Police identified Rose — Jaylen’s father — as a person of interest at the beginning of the investigation.

Rose requested a lawyer as soon as he was brought in for questioning, but detectives had enough evidence to charge him, police sources said.

He is facing murder, manslaughter, assault and weapons possession charges.