不能穿情侣装还发校服干嘛
[bù néng chuān qíng lǚ zhuāng hái fā xiào fú gān ma]
Translated as 'If we can't wear couples' outfits together, why do you send me school uniforms?' A seemingly whimsical or slightly sarcastic expression of confusion or disappointment at not being able to express a close relationship publicly as desired or not being allowed the closeness or unity represented by couple's outfits while reminiscing about school days.