There's only one requirement of any of us and that is to be courageous. Because courage as you might know defines all other human behavior. And I believe - because I've done a little of this myself - pretending to be courageous is just as good as the real thing.
Love shouldn't be about jealousy or anything like that. It should be about commitment and being able to trust that person. If you can't have that from the get-go there's a problem.
