The loneliest person: You don’t have to set yourself on fire to keep other people warm!!! If you do, eventually you will burn up. I am one of that persons always doing for others and when I am home I am lonely! Because we give all of our energy away and don't keep any for ourselves.
If really you want them to be happy but if you are not real happy you will never be happy because you get your happiness to them.
Also I get much pleasure in seeing others happy, doing things for others & being there. An act of kindness goes a long way. To see a smile on someone's face because of me is God's way of telling me.
Friends , if you are able to make somebody happy, that is a great pleasure for the recepient, and always bear in your mind that you in return has planted a seed of love and care, therefore ,dont feel lonely , rather you should be happy also because your plant is always watered it grows and bloom.