Hi, I have a question about first conditional.<br/><br/>The following sentence is in the song of Dido called "Stoned":<br/><br/>"If you won't let me fall for you<br/>Then you won't see the best that I would love to do for you"<br/><br/>Why is there "If you won't let me..." instead of "don't let me"?<br/>Is it correct?<br/>Does it change the meaning?<br/><br/>Thanks.