After shedding nearly half his body weight with the help of trainer Chris Powell on Tuesday's episode of Extreme Weight Loss, 32-year-old Mehrbod Mohammadi gained the confidence to propose to the love of his life, Mona, and ET cameras were there to capture the emotional moment!
Formerly 434 pounds, the now-slim music producer and DJ, devised a plan to pop the question with the help of our correspondent Rocsi Diaz, and the reaction was priceless.
Pics: Top 10 'Dancing with the Stars' Weight-Loss Successes
Responding with shock and shrieks of surprise, Mona said "yes," and her smitten, soon-to-be husband, who explained to ET why he was committed to making the petite brunette his partner for life.
"She chose to be with me when I was mortally obese, and she loved me for who I was," he smiled through happy tears. "That made me want to get healthy for the rest of my life so I could be there for her, because going the route I was, I wouldn't have made it to 40."
Related: Jay Cutler Proposed by Text, Says Kristin Cavallari
Click the video to see the emotional proposal!
Extreme Weight Loss airs Tuesdays on ABC.