Why is it that no matter how hard I try, everyone is still leaving me?

One by one, all the important people in my life is leaving me. 

The leave me without a care.

They do not care how I would feel if they just leave.

I shed tears for each person gone and each day I pray that they will come back.

I now understood the meaning of 'Promises are meant to be broken'

Each and everyone of them promised that they will be with me forever and yet they broke it.

I should be able to mentally prepare myself or get used to it if someone just suddenly left but I can't do it.

It is so tiring.

My life itself is so tiring.

And now the most important person in my life is also on the brink of saying goodbye.

I wonder who is going next..