半爱半恨半苦半甜
[bàn ài bàn hèn bàn kŭ bàn tián]
This translates into Half Love and Half Hate, Half Bitter and Half Sweet. It conveys a complex emotional state. Maybe there are bittersweet feelings inside, neither entirely negative nor absolutely positive; similarly, there is no full-fledged hate and love but just a complicated situation between the extremes.