When a sister leaves

Like a falling leaf In the winds of time, Was I born here A place so sublime. We were born four but now are three The one now belongs to an alien family tree. I don't care if I ever loved you sis, But the fights we've had, I'll forever miss them whenever I'd breathe. Its funny how you were a kid too, For you never appeared one to me. I have always been the irritating mosquito Yet you cared for me like grand-mummy. I was the happiest When I overheard your new plans, Feeling now I'd capture your big bed And donate all your warmers. But why did it all change as the day came close? Why suddenly did my heart sink watching you go? Your room is still maintained like it was. All the warmers are safe and I killed all the bugs in your bed , So you may come back and live here when you want. I hope you're happy wherever you go Take the happiness from my fortune too Live a happy, healthy, lengthy life May all the prosperity be by your side. You'll be forever my only relation With whom I really grew up , With you I could always be me without ever being judged. No expectations, no remorses, no hatred, no gratitude, Is there any other male-female bond so true?