[sadly Dejana will not be doing any sleeping over no matter what, since Xion is there. But she can and will answer the question.]

There is, and isn't one. That is because the meanings of both vary.

Love can mean enjoying someone's company, and it can mean you would do anything for them, and it can mean they are the most important person in your life--any combination of those, or more. I'm afraid there's no simple answer.