why ?

I trusted you and given you my love. I've loved you so as you were and with all thy mistakes. I know you better than the others and know what you like. But yet you've left me alone and would rather have given your love of a stranger. Now I sit here and cry day and night, but why I do not know yet until today. I do not want you leave me hanging again. <'3

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weißt du eigentlich, wie weh es tut?