Four years is neither long nor short, but it has such a heart-wrenching homophone - longing.
Four years ago, she lost her family, friendship and love.
Four years later, she recovered bit by bit, regained friendship and family affection, but found that there was already a sweetheart beside him.
He whispered in his ear - Longing is a river that cannot be crossed. I have always been at the original point, but you are getting further and further away.
(The whole text is pseudo-literary and sometimes hilarious. Some incidents are my own personal experience. The ending must be HE. Please be aware of the minor abuse ahead.)