你姓祝在我心脏
[nĭ xìng zhù zài wŏ xīn zàng]
A play on words. In Chinese, the surname 'Zhu' (祝) can sound like 'blessings.' The person metaphorically states that someone's family name is carved in their heart, which could imply deep love for a person with that particular last name, as it signifies a heartfelt or important place.