Truth be told, many people confuse these two terms to be synonyms when truly they have completely different meanings.
To be desired is amazing; to know that a person or many people want to be with you can be a much-needed self-esteem boost. Desire is craving, longing, yearning for a person, and is often the way relationships are born. A relationship that begins without desire might as well be a business arrangement. Real relationships begin with the desire to be with a person, to speak with a person, and to learn about a person but that feeling must graduate from desire to value. To be valued means to be held in high esteem preferably by the person who desires you, and whom you desire. It means to be appreciated, cherished, prized, and treated with a high level of importance.