If a guy said 'would you marry me?'?

Seriously,if someone telll you wold u marry me,i think u shouldnt respond and say something that directly comes from ur heart and not say something that u reharsed over and over again,i mean saying "holly yes i do"is just trying too hard,better say something that comes from ur heart at that moment in time so that u wont have to regret it later,it's not acting or a comedy film!!