Corey is ready to kick some dudes ass for being a little prick. ......SORRY!
But yes in all reality some guy was talking trash about Corey's wife Katrina, who is represented by the little stick chibi thing in the background, and Corey pretty much told him to stop talking shit or things would get ugly.
Ending result being that he kept talking so she challenged him to a fight, and this moment here happened.