On November 4, 2013, Harris was convicted on misdemeanor counts of domestic violence, assault and battery against his ex-boyfriend, Dimitri Geier, stemming from an incident on August 21, 2012. He was acquitted of felony counts of domestic violence causing great bodily injury and assault with force likely to produce great bodily injury. Geier also sued Harris for assault, battery, false imprisonment, negligence and both intentional and negligent infliction of emotional distress, but later dropped the lawsuit. According to the suit, Harris became upset and the two men argued after Geier poured soy sauce on a plate of rice at a restaurant in Menlo Park, California. The situation escalated as the two exchanged blows. Harris' attorney, Alin Cintean, said Geier assaulted Harris first. "Unfortunately, Mr. Geier is the one who ended up with an injury," he said. Harris' defense team argued that the statute of limitations on the misdemeanor charges for the 2012 incident had expired. However, the judge sentenced Harris to five days in jail and three years of probation, and ordered him to take domestic violence counseling and pay a fine.
After the incident became public, Cintean stated that Harris identifies as gay, remarking that "he is a very private person. He doesn't like to talk about his personal life." On March 29, 2013, Harris came out as gay during an interview with CNN. Until Michael Sam in 2014, no NFL player had come out while they were playing, and only a few had after retiring.