Jīnglì le nà duàn gǎnqíng, tā de xīn shānghénlěilěi.
After that relationship, her heart was covered in scars.
Tips
usage
累累 (lěilěi) here means 'in piles / many over'. Works for both literal wounds (bodies, damaged objects) and figurative ones (hearts, reputations, economies). Tone is somber.