我爱你你爱她草尼玛我好瞎
[wŏ ài nĭ nĭ ài tā căo ní mă wŏ hăo xiā]
A rather vulgar yet emotional expression that goes 'I love you, but you love her. How blind/ridiculous I was!'. There is clearly a hurt feeling expressed here, likely indicating unreciprocated love or betrayal which causes deep pain.