忆凉心
[yì liáng xīn]
This name conveys a deep longing or nostalgia ('忆' meaning 'recall'), while also evoking a sense of sorrowful and cool emotions ('凉心' can mean a cold heart or a cooling-down of passions, suggesting sadness or disillusionment). It often implies the person might miss something in the past, such as love or youth, that once was warm but is now cold.