How Important Is Sex?

I'm going through a bit of a celibate phase right now. It might be psychological, but that doesn't change the fact that I have no desire for sex. (I even get bored if I try to masturbate!) Now the weird thing is, I still find certain people and situations very sexy, I just don't want to have sex. I even feel sensual and cuddly and still LOVE kissing and touching and fondling... but as soon as things start heading towards... that... well, I just lose interest.

My question to you, dear readers, is:

Is it fair to the other party for someone who's not interested in having sex to have romantic entanglements?

(Assume that everything is open and honest.)