Peta Murgatroyd and Maksim Chmerkovskiy
These Dancing with the Stars (DWTS) cast have dated other cast members before starting to date in 2013. However, the two called it quits after only 10 months of being together. However, the couple rekindled their romance in 2014 and got engaged the following year. Where else would be the perfect setting for the proposal but on the DWTS stage! Maksim surprised not just Peta, but the entire audience when he knelt on one knee and asked her to marry him!