失恋

しつれん · shitsuren · JLPT N2 · noun

broken heart

💔 失恋 = 失 (lose) + 恋 (love): losing love, a broken heart

失 means lose, as in 失敗 (failure) and 失業 (unemployment). 恋 is the character for romantic love, so 失恋 is losing that love.