Jared Gurman, 26, of Williston Park, is charged with attempted murder.
Police say Gurman was having an on going text argument with his 26-year-old girlfriend, who went to his house to discuss the messages.
When she arrived, authorities say she found Gurman in front of his house with a semi-automatic rifle in his hand.
Police say she tried to calm the situation and started to walk inside the home when Gurman shot her once in the back.
He then drove the victim to North Shore/Long Island Jewish Medical Center in New Hyde Park, where he was later arrested.
The victim is listed in stable condition.
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