我在后面看着你和她秀恩爱
[wŏ zài hòu miàn kàn zhe nĭ hé tā xiù ēn ài]
This name expresses the feeling of someone watching another couple display affection. The underlying emotion may be jealousy, helplessness, bitterness, or even longing. It reflects observing a personal relationship from the sidelines.