Alyanda Ndiweni wept in the dock at Bradford and Keighley Magistrates’ Court last Friday where she appeared after being held in custody.
She is accused of wounding Vincent Ngwenya at her home in Kingsdale Avenue, Undercliffe, Bradford, with intent to cause him grievous bodily harm.
Prosecutor Paul Ramsay said the case would have to go to Bradford Crown Court.
He said Ndiweni is accused of stabbing Mr Ngwenya at least twice with a four and a half inch bladed kitchen knife after they had returned to Bradford from a night out in Manchester.
Mr Ramsay said Mr Ngwenya, who is in the Army, was allegedly stabbed through to his shoulder bone and had wounds to the top of his head and the back of his neck.
Ndiweni, the mother of a young child, was granted bail and ordered to appear at the Crown Court on January 21 for a preliminary hearing. .