半梦半醒半倾心
[bàn mèng bàn xĭng bàn qīng xīn]
Meaning 'half asleep, half awake, and infatuated', this captures a dreamy or in-between state where one's heart is partially captivated, yet not entirely submerged into love or affection. This might allude to falling gradually into feelings for someone or being lost in thoughts about love.