It goes without saying that Justin Bieber and Selena Gomez have had their fair share of ups and downs. The stars, who famously dated on and off from 2010 to 2013, grabbed headlines after they famously rekindled their romance in 2017, but Selena is finally ready to say goodbye to him following his wedding to Hailey Baldwin. In case you're not familiar with their history, allow us break it down for you.