By Daily Mail Reporter PUBLISHED: 17:11 EST, 20 November 2013 | UPDATED: 15:34 EST, 21 November 2013 A 23-year-old party girl who knifed her boyfriend in their Manhattan apartment last year has been found guilty of murder on all counts in the stabbing of her boyfriend. Yekaterina Pusepa said the bloody brawl began with a fight over a purse that her boyfriend Alec Katsnelson left unattended while she went to the bathroom at a bar in May, 2012. After an argument, the couple returned to their Gold St pad where Pusepa stabbed him in the chest with a nine-inch steak knife, piercing his lungs and nicking his heart.
@highlight
Yekaterina Pusepa, 23, found guilty of attempted murder after knifing her boyfriend last year
@highlight
She testified in court she stabbed Alec Katsnelson after he repeatedly hit her and threw her around their Manhattan apartment
@highlight
Prosecutors claim she attacked in a jealous rage when Katsnelson received a text from another girl
@highlight
The May 2012 fight began because Katsnelson didn't look after her clutch at a club
@highlight
Pusepa initially claimed the wounds were self-inflicted
@highlight
Faces up to 25 years in jail when she is sentenced next month
@placeholder was arrested in March last tear for roughing her up, but she took him back in spite of a restraining order.