I guessed most people had relation to this song. You need a partner whom can support each other . A relationship ain't that simple. It needs alot of works! There's moment that we've felt fed up with our relationship and chose to threw it away, but when you're realize that he/she was the one that fit you, you'll make any effort to find way back into love.
I think it doesn't matter whether you're single or in a relationship, as long as you could find your own happiness and know yourself well.
A lover can't guarantee you happiness