unrequited (unanswered) love.    From Wordnet, Princeton University. 

I can just see Amy pining for Barack, while Jon Stewart suffers in unrequited love.    From Wordnik.com.  [5 Movies That Should Never, Ever Be Remade | Fandomania] Reference

It's called unrequited love and it happens all the time.    From Wordnik.com.  [Answerbag: Latest Questions in Question Categories] Reference

In the end it took me a dictionary, to find out the meaning of 'unrequited'.    From Wordnik.com.  [Word Magazine - Comments] Reference

It's very difficult to have this kind of unrequited love and still be happy.    From Wordnik.com.  [Yahoo! Answers: Latest Questions] Reference

Just what is she waiting for ... could this be some kind of unrequited love on her part?.    From Wordnik.com.  [Anime Nano!] Reference

Ms. KING: My first unrequited love, yes, is drums.    From Wordnik.com.  [Kaki King Dreams of Melody, 'Revenge'] Reference

This image is further confused by unrequited love.    From Wordnik.com.  [ENTENTE NOT-SO-CORDIALE] Reference

Goulding is a professional where unrequited love is concerned.    From Wordnik.com.  [Ellie Goulding's summer of love] Reference

His narcissistic defences are fuelled by unrequited humiliation.    From Wordnik.com.  [Terrorists and Freedom Fighters] Reference

Olivia's evil twin made a pass at her unrequited love on Fringe.    From Wordnik.com.  [Top Moments: Mistaken Identities on House, Letterman and Sesame Street] Reference

Temesvár, and evidently, from his verses, his love was not unrequited.    From Wordnik.com.  [Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy"] Reference

It's always going to be incredibly hurtful when your love is unrequited.    From Wordnik.com.  [How to Bewitch a Wizard] Reference

I mention it more to show of what unrequited labour Infantry was capable.    From Wordnik.com.  [The Story of the 2/4th Oxfordshire and Buckinghamshire Light Infantry] Reference

Should it end at Heart Line, the life has been ruined by unrequited love.    From Wordnik.com.  [The Handy Cyclopedia of Things Worth Knowing A Manual of Ready Reference] Reference

Why suffer, as he was suffering, all the agonies of burning, unrequited love.    From Wordnik.com.  [Colorado Jim] Reference

It's that long-unrequited love story that forms the heart of "Walk the Line.".    From Wordnik.com.  [COMING ATTRACTIONS] Reference

It seems strange that there should be so much unrequited affection in the world.    From Wordnik.com.  [Friendship] Reference

UNGER: And began to develop delusions of unrequited love resulting in anger and jealousy.    From Wordnik.com.  [Exploring The Darker Side Of Tweets And Twitter] Reference

It's love unrequited, from, you know, you putting out more than somebody is giving back to you.    From Wordnik.com.  [A Visit with the Soul Queen of New Orleans] Reference

Another song on Cho Dependent is based on her unrequited love for a TV writer that she worked with.    From Wordnik.com.  [Lee Stranahan: Margaret Cho Talks About New Album, Gay Rights & Head Lice] Reference

We ought not be surprised that unrequited loves and passions have uglily reared their heads at this moment.    From Wordnik.com.  [Grant Brooke, M.Div.: Hindsight: Burying the Ghost of Ground Zero] Reference

If not, why encourage aspiring songwriters to put their own unrequited love out there for public consumption?.    From Wordnik.com.  [I Write The Songs] Reference

Yesterday, however, the president's speech suggested that, at least for now, he's tired of unrequited outreach.    From Wordnik.com.  [Art Levine: Will Voters Listen? Obama vs. GOP on $180 Billion Tax, Infrastructure Plan] Reference

A writer on "Frasier" based Dr. Frasier Crane's high-school crush Lorna Lynley on an unrequited love of his own.    From Wordnik.com.  [Revenge of the TV Writers] Reference

Perot will cause a stir if he runs, but voters may ultimately find their yearning for a true maverick unrequited.    From Wordnik.com.  [Maverick's Playground] Reference

You can almost see him squinching his eyes to keep from tearing up over the unrequited love in a song called "Crush.".    From Wordnik.com.  [One Critic, Three New Pop Singles] Reference

Other videos explore the fleshy eroticism of the body in the untempered throws of love, both requited and unrequited.    From Wordnik.com.  [Bjork Icon] Reference

Either to amend his ruined fortunes, or to gratify a passion long unrequited, Mr. Radcliffe was resolved upon marriage.    From Wordnik.com.  [Memoirs of the Jacobites of 1715 and 1745 Volume III.] Reference

"R. Kelly, who had a hit with 'I Believe I Can Fly,' expressed his unrequited love for a girl through 'Bump and Grind'.".    From Wordnik.com.  [I Write The Songs] Reference

And in many respects, the remarkable thing about King was that he could hope in a time of lynching and unrequited crimes.    From Wordnik.com.  [R&B Legend Wilson Pickett] Reference

Life is but a hollow mockery to the woman, or the man, whose unrequited love fills the hours with an unsatisfied longing.    From Wordnik.com.  [Nell, of Shorne Mills or, One Heart's Burden] Reference

Among the exciting causes may be mentioned disturbing emotions, unrequited love, homesickness, depression of spirits, etc.    From Wordnik.com.  [The Ladies Book of Useful Information Compiled from many sources] Reference

It's an elegantly realised portrait of unrequited love, frustrated aspirations and the unspoken compromises of marriage and family.    From Wordnik.com.  [Debut fiction: Circus Bulgaria by Deyan Enev; The Seas by Samantha Hunt; Saraswati Park by Anjali Joseph] Reference

So, I just took that … (Soundbite of laughter) Mr. ROBERTS: … the unrequited love story and made it, you know, took it to an extreme.    From Wordnik.com.  [Sam Roberts: Rock At 'The End Of The World'] Reference