Nick Gordon has been arrested for domestic battery and false imprisonment, the Seminole County Sheriff's office in Florida told People magazine.
Bobbi Kristina died in March 2015, weeks after she was found unresponsive in a bathtub at the home she shared with Gordon.
Gordon was previously found civilly liable for her death, but he was never charged with any crime and has maintained he did not harm Bobbi Kristina Brown.
TMZ said Gordon's current girlfriend was hospitalized after he allegedly assaulted her Friday night.
A judge Sunday ordered him to wear a GPS monitor and stay away from the woman if he is able to post his $15,500 bond, which he had not done.