孤单会说话寂寞会唱歌
[gū dān huì shuō huà jì mò huì chàng gē]
This implies that loneliness and solitude have been the constant companions of the user who has almost developed a kind of relationship with them. He or she is used to living alone, feeling alone, and has become accustomed to sharing his feelings by talking with loneliness or singing about being lonely.