只因你喜欢走而我姓刘
[zhĭ yīn nĭ xĭ huān zŏu ér wŏ xìng liú]
'Only because you like walking while my surname is Liu' seems like an whimsical association between liking walks and bearing a certain family name. It might humorously refer to matching interests (like walking) in social settings tied humorously to the creator’s last name.