对不起我爱你u
[duì bù qĭ wŏ ài nĭ u]
Bu Qi De Wo Ai Ni U translates directly to 'Sorry, I love you'. In the online context adding 'u' at the end could make it more personal/cute, perhaps used as both an apology and declaration of love simultaneously. Represents mixed sentiments often experienced when loving someone unsuitable.