你说过不是和我结婚我就抢我说过除了你我不会要别人
[nĭ shuō guò bù shì hé wŏ jié hūn wŏ jiù qiăng wŏ shuō guò chú le nĭ wŏ bù huì yào bié rén]
You said you would marry me, and if you don't, I'll snatch the happiness. Conversely, I've promised that apart from you, I will accept no one else. It expresses the commitment and desperation in a relationship.