这个梦不该做这颗心不该给
[zhè gè mèng bù gāi zuò zhè kē xīn bù gāi jĭ]
I shouldn't have had this dream; I shouldn’t have given my heart. Reflects regret over having invested hope or affection in circumstances or individuals where such devotion wasn't advisable or reciprocated. Conveys disillusionment.