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.