The woman is now facing criminal charges, reports CBS Station WBBM in Chicago.
Ana Perez, 40, called 911 around 8:30 p.m. on Sunday, claiming her boyfriend was attacking her.
When police arrived, she changed her story, admitting she was trying to scare her boyfriend into marrying her.
Police in the Grand Central District were not amused, and charged Perez with disorderly conduct.
"She called 911 to scare him and have the police force him to marry her,'' according to Grand Central District police Capt. Grand Central District Capt. Ronald Pontecore.
Pontecore said the officers raced to the scene, believing a woman was in danger, "only to find out it's something ridiculous like that."
The boyfriend, according to police, had no intention of marrying Perez and was in the process of breaking up with her.
The Sun-Times Media Wire contributed to this report.