我讨厌看到你和她在一起
[wŏ tăo yàn kàn dào nĭ hé tā zài yī qĭ]
Translating directly it is 'I hate to see you with her', indicating a strong displeasure when seeing two specific people spending time together, suggesting jealousy or a feeling of personal betrayal from someone the person may care about deeply or have had previous ties with.