Upset + Happy

Seriously I don't know if I should be happy or upset.
Imagine your sibling bought a pet and you have it for like 2 years?

And one day, you went home and goes like, " eh? where it's?

.

.

went home today and wanted to change my bro's pet's water and found that the cage was gone.
Stunned.
So i went to ask my parents. They say he gave it away.
I was like F man. Seriously, didn't even tell me. So when he came back, I asked him why didn't you discuss or tell me that you are giving it away.
And do you know what was his reply?

He said, " tell you for what, you also cannot take care".

F MAN. seriously , he can just eat shit. Firstly,
I, am the one whom always do the cleaning of shit and stuff.
I, am the one whom always change it's house.

I, am the one whom always change the water.
I, am the one whom feed it with worms when I see the dead worms discomposed.

WTF, did you do anything? NO.

YOU DON'T EVEN DESERVED TO HAVE A PET!
I am the one whom is willing to do all the stuff because I always wanted a pet.
but you? only use your fking mouth to say what, " I changed the water already" .
Hello? You didn't change the water at all man.

I didn't had the last chance to see it. Fk.
I hope the next owner will take care of it to the max.
I should be happy right? to let it have another owner whom may/may not be responsible?
I don't know.