I think what hurts the most is
when you give your all to someone.
Through thick and thin,
you are there for them,
you stick with them,
no matter what.
Then one day they just give up.
They won't even fight for you.
The one thing you would never have done,
they did with no hesitation.
p/s : Semoga kesusahan bisa mengajar erti terus asa.