I need to rethink my life.
A marriage proposal is a romantic confession that you love a person and want to spend the rest of your life with her. A sweet moment between two sweet people.

Now here is the thing: this is your business and the world doesn’t need to know anything about it. Sure, it’s entertainment for the audience but what do they have anything to do with you and your lover? They’ll disappear the instance the drama is over and you might never see them again. The only thing you’re doing is putting pressure on your lover.
Was it your lack of confidence that didn’t want to make you propose in private? If you lacked confidence that she’ll say yes, then you should’ve waited. To make the situation worse, you did it in public where the embarrassment is ten times greater than doing it privately. Don’t propose in public unless you’re 100% sure she’ll say yes. Otherwise, sorry for not being sorry lad, it was you who risked getting rejected in front of +100 people.