他是我的你别碰她是我的你别抢
[tā shì wŏ de nĭ bié pèng tā shì wŏ de nĭ bié qiăng]
The meaning here is possessive: ‘He's mine, hands off; she’s mine, don’t you snatch her away.’ It shows the owner is territorial and protective about personal relationships. It might come across as somewhat controlling.