爱她你瞎了眼吗
[ài tā nĭ xiā le yăn ma]
'Did you fall in love with her only because you were blind?' This suggests disbelief or disapproval over someone loving another person. It reflects a strong skepticism toward someone's choice or taste, often used as an expression of shock or disappointment by friends/family members who feel the chosen one might not be right/suitable.