他要结婚我去干嘛啊你是新娘干嘛不去啊
[tā yào jié hūn wŏ qù gān ma a nĭ shì xīn niáng gān ma bù qù a]
The phrase translates roughly to 'He wants to get married, why should I go there; You're going to be the bride, so why wouldn't you go?' This could imply humor or irony. Possibly reflecting on feelings post-breakup, where the user is commenting sarcastically on an ex-partner getting married.