Article continues below advertisementJustin Bieber proved he only has eyes for his wife, Hailey Bieber, during his latest livestream.The 31-year-old pop star opened up about what he defines as cheating while speaking about his beliefs at a table with friends.During the Twitch stream, Justin preached about how even the mere thought of another woman counts as being unfaithful in his eyes.Article continues below advertisementSource: @luvshelo/XJustin Bieber chatted with friends about what counts as cheating.