My friend asks me if I want to come to her birthday party. I say:<br/><br/>Do you really want me to come?<br/><br/>VS<br/><br/>Do you really want me to go?<br/><br/>AND<br/><br/>If you really want me to come then I'll come.<br/><br/>VS<br/><br/>If you really want me to go then I'll go.<br/><br/>What's the difference between the last two sentences?