A Love Gone Wrong: His Last Letter Was Meant Only for Me

Angst Stories! Make the Male Lead Suffer! Body and Heart! Sickly Male Lead!! Modern Setting

I've read too many stories where the female lead gets tortured. I'd like a few where the male lead suffers instead, preferably both physically and emotionally, twice as much. Ideally, he was once incredibly powerful but ends up physically frail after all the suffering. Also, if the female lead gets tortured, please let me know when it happens.