Why should I feel sad ?

Thou hast betrayed my heart,
why should I  become gloomy?
 It's thine desire to love me or not.

I couldn't realize before, today I discovered,
What we call love,
It's just a gambling of two modern hearts.

 The considerations of all the promises ,
thou hast broken in an instant thou had once,
The point of sadness, thou hast brought me  and now abandoned me.

Upon the threshold of that point, I'll be a stranger and sleeping,  
For all the melancholy, I will be isolated in later life.
Bless me every one with sorrows.

Thou hast right to love me or not ,
Thou hast broken my heart.
Why should I feel sad ?