How do you feel about forbidden love?

I feel that there shouldn't be a taboo on anything. It's that taboo itself which makes the forbidden thing more attractive to people and they long to do it. You know, it's just human nature. If there wasn't any taboo, and every person was free to love whoever (or whatever) they liked, provided they just don't show their affinities to others, I don't see why it can't be allowed. After all, mentalities of persons vary widely on this planet. If someone derives satisfaction from a relationship, no matter how weird it may seem, it should be allowed only under the restriction, of course, that they don't bring it out in public. Let every person enjoy his/her life in their own way, but not in a way which will hurt others' feelings and ideologies.