你有所不知。我去年情人节当天和男朋友吵架分手,她刚好也在场,目睹了整个经过。
nǐ yǒusuǒbùzhī 。wǒ qùnián qíngrénjié dàngtiān hé nán péngyou chǎojià fēnshǒu ,tā gānghǎo yě zàichǎng ,mùdǔ le zhěnggè jīngguò 。
There's something you don't know. Last year on Valentine's Day I split up with my boyfriend during an argument. She just happened to be there and saw it all happen.