她深存我心他久居我心
[tā shēn cún wŏ xīn tā jiŭ jū wŏ xīn]
This means 'She stays deep within my heart, he has long resided in my heart'. The person perhaps bears two opposite sexes' impression firmly planted inside mind, one leaves indelible traces over time (often female) another makes lasting effects during long run(likely male).