To care, but not being cared for...
To love, but not being loved...
To laugh, but not sharing the laughter...
To shine, but not sharing the light...
To give, but not being given to...
To ache, but not being ached for...
This is the curse of being alone -
To be thrown by stone...
Jacqui Broad
http://www.poemhunter.com/poem/curse-of-loneliness/