其实有爱的是大姨妈
[qí shí yŏu ài de shì dà yí mā]
An unusual and possibly humorous way to say the menstrual cycle (Aunt Flo, affectionately known as 'Big Aunt' in China) is what should be loved instead of someone else. It can imply a satirical view towards emotional attachments, focusing on something natural and unavoidable.