微笑勉强的有点心疼态度漠然的有点心寒
[wēi xiào miăn qiáng de yŏu diăn xīn téng tài dù mò rán de yŏu diăn xīn hán]
The smile seems forced, with hints of empathy, whereas an indifferent attitude hides some chill within. This describes internal struggle, where smiling outwardly covers feelings of sorrow while coldness masks inner unease or hurt.