The video shows her putting her finger in/on his face.
During previous shows he detailed everything and mentioned she wouldn't leave him alone, kept arguing and getting in his face, made threats and jokes about killing him, and so on. She also seems to have a history of such behavior according to the people who spoke on the show.
Dude said she went to jail for getting into it with the guy who was trying to protect her on the video.
Again, not the best look, but the footage isn't of Corey walking down the street mushing some random woman in the face.