我嫉妒她能拥有你
[wŏ jí dù tā néng yōng yŏu nĭ]
Means 'I envy her for being able to have you', showcasing feelings of jealousy towards the girl in question for having gained the attention/love/affection of someone else—usually implying strong envy mixed with pain over lost love or opportunity. It conveys unresolved romantic entanglement and sorrow over what might have been if circumstances were different.