甜蜜恩爱心酸心痛分手了吧
[tián mì ēn ài xīn suān xīn tòng fēn shŏu le ba]
The username 'Sweet Love Turns to Heartbreak Leading to Breakup' suggests the end of a romantic relationship after experiencing sweet moments that turned bitter, conveying feelings of regret, pain, and sadness after a breakup.