will it even make a difference?

If I prove that I love you, will it make a difference?
If I say I'll make sure everything will change, will it make a difference?
If I say you are my everything, will you reply the same?
If I cry because I love you, would you even care?
If I promise you things, would you listen?
I don't know what to think or what to say. I bet you'd laugh if I beg. I don't like to keep promises because I can never make them come true. Which is better? What is better? If I can't prove you anything, maybe it's best if it's over.