为你矜持为你疯狂
[wéi nĭ jīn chí wéi nĭ fēng kuáng]
This username reflects the extremes of emotion and behavior that love can inspire - being reserved for someone while also acting crazily due to them. The person may act very controlled and proper when they want to make a positive impression on the loved one, but may behave unpredictably due to strong feelings when facing love challenges.