Unrequinted love is one that is not reciprocated or understood by the other party as love. Some prominent situations that come to mind are those which consist of stalker ralationships. Often, the person doing the stalking thinks that the person they are following loves them, when in fact, they may not even know the person exists. Some downsides are hurt feelings, and aggression if those feelings are not reciprocated.
unrequited love
The unknown boy had romantic feelings for the popular girl, but his love was unrequited.
The word unrequited is an adjective. It means unanswered or not returned.
Unrequited Love - 1908 was released on: USA: July 1908
She loved him, but he did not feel the same way. It was unrequited love.
She loved him, but he did not feel the same way. It was unrequited love.
The cast of Unrequited Love - 2009 includes: Max Irons as Tom
"unrequited"http://www.merriam-webster.com/dictionary/unrequited
When it is unrequited.
Love: Unrequited
unrequited love and jealousy as common themes
The cast of Unrequited Love - 2006 includes: Gregory Dart Rebecca E Marshall Vibeche Standal