How can I create an effective love story?

First of all, I would like to tell you congrats! Your plot sounds really interesting, and also unusual, which is especially good. A lot of love stories these days are pretty predictable and rather boring. But it seems like you've proved that not all romances today have to be cheesey. However, I'm guessing that your professor knows what he's talking about. (As he is a teacher, after all) My advice, as a writer? Read it over and over again and proof read- a lot. Make changes to some events if you have to. When you're satisfied with what you have come up with- that's when you know that you've done your best, and it's time to call it a finished piece.